10938864531 has 16 divisors (see below), whose sum is σ = 16678980864. Its totient is φ = 6246941664.

The previous prime is 10938864527. The next prime is 10938864539. The reversal of 10938864531 is 13546883901.

It is not a de Polignac number, because 10938864531 - 2² = 10938864527 is a prime.

It is a super-2 number, since 2×10938864531² (a number of 21 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (10938864539) 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, 124725 + ... + 193478.

It is an arithmetic number, because the mean of its divisors is an integer number (1042436304).

Almost surely, 2^10938864531 is an apocalyptic number.

10938864531 is a deficient number, since it is larger than the sum of its proper divisors (5740116333).

10938864531 is a wasteful number, since it uses less digits than its factorization.

10938864531 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 319850.

The product of its (nonzero) digits is 622080, while the sum is 48.

The spelling of 10938864531 in words is "ten billion, nine hundred thirty-eight million, eight hundred sixty-four thousand, five hundred thirty-one".