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19053426881774 = 2194078712293279
BaseRepresentation
bin1000101010100001110001…
…01111011011010011101110
32111110111020002010212211202
410111100320233123103232
54444132404240204044
6104305005023045502
74004364452203355
oct425207057332356
974414202125752
1019053426881774
11608657083119a
122178822140892
13a82965a3360c
1449c29570c99c
15230953c7bc4e
hex115438bdb4ee

19053426881774 has 16 divisors (see below), whose sum is σ = 30085098278400. Its totient is φ = 9025085457144.

The previous prime is 19053426881771. The next prime is 19053426881807. The reversal of 19053426881774 is 47718862435091.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 19053426881774.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (19053426881771) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4596734 + ... + 7696545.

It is an arithmetic number, because the mean of its divisors is an integer number (1880318642400).

It is a 1-persistent number, because it is pandigital, but 2⋅19053426881774 = 38106853763548 is not.

Almost surely, 219053426881774 is an apocalyptic number.

19053426881774 is a deficient number, since it is larger than the sum of its proper divisors (11031671396626).

19053426881774 is a wasteful number, since it uses less digits than its factorization.

19053426881774 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12334087.

The product of its (nonzero) digits is 81285120, while the sum is 65.

The spelling of 19053426881774 in words is "nineteen trillion, fifty-three billion, four hundred twenty-six million, eight hundred eighty-one thousand, seven hundred seventy-four".

Divisors: 1 2 19 38 40787 81574 774953 1549906 12293279 24586558 233572301 467144602 501405970573 1002811941146 9526713440887 19053426881774