10931999964 has 48 divisors (see below), whose sum is σ = 26411253120. Its totient is φ = 3515189440.

The previous prime is 10931999963. The next prime is 10931999987. The reversal of 10931999964 is 46999913901.

It is a junction number, because it is equal to n+sod(n) for n = 10931999898 and 10931999907.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10931999963) 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, 391219 + ... + 418229.

It is an arithmetic number, because the mean of its divisors is an integer number (550234440).

Almost surely, 2^10931999964 is an apocalyptic number.

It is an amenable number.

10931999964 is an abundant number, since it is smaller than the sum of its proper divisors (15479253156).

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

10931999964 is a wasteful number, since it uses less digits than its factorization.

10931999964 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28210 (or 28208 counting only the distinct ones).

The product of its (nonzero) digits is 4251528, while the sum is 60.

The spelling of 10931999964 in words is "ten billion, nine hundred thirty-one million, nine hundred ninety-nine thousand, nine hundred sixty-four".