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18895966125419 = 1011131679914089
BaseRepresentation
bin1000100101111100011110…
…10110010011110101101011
32110220102210100221200021202
410102332033112103311223
54434042414312003134
6104104404220354415
73660121440644015
oct422761726236553
973812710850252
1018895966125419
1160258092963a9
1221521b89a5a0b
13a70b60886636
144947d91431b5
1522b7da1bcd7e
hex112f8f593d6b

18895966125419 has 16 divisors (see below), whose sum is σ = 19367214471360. Its totient is φ = 18432272409600.

The previous prime is 18895966125391. The next prime is 18895966125427. The reversal of 18895966125419 is 91452166959881.

It is a cyclic number.

It is not a de Polignac number, because 18895966125419 - 224 = 18895949348203 is a prime.

It is a super-2 number, since 2×188959661254192 (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (18895966125469) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3051074 + ... + 6863015.

It is an arithmetic number, because the mean of its divisors is an integer number (1210450904460).

Almost surely, 218895966125419 is an apocalyptic number.

18895966125419 is a deficient number, since it is larger than the sum of its proper divisors (471248345941).

18895966125419 is a wasteful number, since it uses less digits than its factorization.

18895966125419 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9914470.

The product of its digits is 335923200, while the sum is 74.

The spelling of 18895966125419 in words is "eighteen trillion, eight hundred ninety-five billion, nine hundred sixty-six million, one hundred twenty-five thousand, four hundred nineteen".

Divisors: 1 101 113 167 11413 16867 18871 1905971 9914089 1001322989 1120292057 1655652863 113149497757 167220939163 187088773519 18895966125419