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18442141589495 = 5134331434145691
BaseRepresentation
bin1000011000101111001010…
…10011000101111111110111
32102022001101120000120200102
410030113211103011333313
54404124001221330440
6103120111453504315
73612254314020521
oct414274523057767
972261346016612
1018442141589495
1159702a5161568
12209a263aa209b
13a3a118030290
1447a866732a11
1521eac82b8b15
hex10c5e54c5ff7

18442141589495 has 32 divisors (see below), whose sum is σ = 23890151390784. Its totient is φ = 13586115225600.

The previous prime is 18442141589467. The next prime is 18442141589507. The reversal of 18442141589495 is 59498514124481.

It is not a de Polignac number, because 18442141589495 - 238 = 18167263682551 is a prime.

It is a super-4 number, since 4×184421415894954 (a number of 54 digits) contains 4444 as substring. Note that it is a super-d number also for d = 2.

It is a Harshad number since it is a multiple of its sum of digits (65).

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 403604600 + ... + 403650290.

It is an arithmetic number, because the mean of its divisors is an integer number (746567230962).

Almost surely, 218442141589495 is an apocalyptic number.

18442141589495 is a deficient number, since it is larger than the sum of its proper divisors (5448009801289).

18442141589495 is a wasteful number, since it uses less digits than its factorization.

18442141589495 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 60483.

The product of its digits is 66355200, while the sum is 65.

The spelling of 18442141589495 in words is "eighteen trillion, four hundred forty-two billion, one hundred forty-one million, five hundred eighty-nine thousand, four hundred ninety-five".

Divisors: 1 5 13 65 433 2165 5629 14341 28145 45691 71705 186433 228455 593983 932165 2969915 6209653 19784203 31048265 80725489 98921015 257194639 403627445 655254631 1285973195 3276273155 8518310203 42591551015 283725255223 1418626276115 3688428317899 18442141589495