10502538918 has 32 divisors (see below), whose sum is σ = 21692620800. Its totient is φ = 3386359680.

The previous prime is 10502538899. The next prime is 10502538923. The reversal of 10502538918 is 81983520501.

It is a super-2 number, since 2×10502538918² (a number of 21 digits) contains 22 as substring.

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 10502538918.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 434446 + ... + 457982.

It is an arithmetic number, because the mean of its divisors is an integer number (677894400).

Almost surely, 2^10502538918 is an apocalyptic number.

10502538918 is an abundant number, since it is smaller than the sum of its proper divisors (11190081882).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

10502538918 is a wasteful number, since it uses less digits than its factorization.

10502538918 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25972.

The product of its (nonzero) digits is 86400, while the sum is 42.

The spelling of 10502538918 in words is "ten billion, five hundred two million, five hundred thirty-eight thousand, nine hundred eighteen".