18704952785365 has 128 divisors (see below), whose sum is σ = 29385755320320. Its totient is φ = 11082894028800.

The previous prime is 18704952785357. The next prime is 18704952785369. The reversal of 18704952785365 is 56358725940781.

It is not a de Polignac number, because 18704952785365 - 2³ = 18704952785357 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 18704952785294 and 18704952785303.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18704952785369) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 2727859017 + ... + 2727865873.

It is an arithmetic number, because the mean of its divisors is an integer number (229576213440).

It is a 1-persistent number, because it is pandigital, but 2⋅18704952785365 = 37409905570730 is not.

Almost surely, 2^{18704952785365} is an apocalyptic number.

It is an amenable number.

18704952785365 is a deficient number, since it is larger than the sum of its proper divisors (10680802534955).

18704952785365 is a wasteful number, since it uses less digits than its factorization.

18704952785365 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8803.

The product of its (nonzero) digits is 508032000, while the sum is 70.

The spelling of 18704952785365 in words is "eighteen trillion, seven hundred four billion, nine hundred fifty-two million, seven hundred eighty-five thousand, three hundred sixty-five".