18965708795 has 24 divisors (see below), whose sum is σ = 25263690480. Its totient is φ = 13656632000.

The previous prime is 18965708791. The next prime is 18965708813. The reversal of 18965708795 is 59780756981.

It is not a de Polignac number, because 18965708795 - 2² = 18965708791 is a prime.

It is a super-2 number, since 2×18965708795² (a number of 21 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (18965708791) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 94085 + ... + 216294.

It is an arithmetic number, because the mean of its divisors is an integer number (1052653770).

Almost surely, 2^18965708795 is an apocalyptic number.

18965708795 is a deficient number, since it is larger than the sum of its proper divisors (6297981685).

18965708795 is a wasteful number, since it uses less digits than its factorization.

18965708795 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 310507 (or 310496 counting only the distinct ones).

The product of its (nonzero) digits is 38102400, while the sum is 65.

The spelling of 18965708795 in words is "eighteen billion, nine hundred sixty-five million, seven hundred eight thousand, seven hundred ninety-five".