9931914693264 has 160 divisors (see below), whose sum is σ = 27642134790144. Its totient is φ = 3063935761920.

The previous prime is 9931914693251. The next prime is 9931914693269. The reversal of 9931914693264 is 4623964191399.

It is a junction number, because it is equal to n+sod(n) for n = 9931914693195 and 9931914693204.

It is not an unprimeable number, because it can be changed into a prime (9931914693269) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 190156657 + ... + 190208879.

Almost surely, 2^{9931914693264} is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 9931914693264, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (13821067395072).

9931914693264 is an abundant number, since it is smaller than the sum of its proper divisors (17710220096880).

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

9931914693264 is a wasteful number, since it uses less digits than its factorization.

9931914693264 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 57845 (or 57839 counting only the distinct ones).

The product of its digits is 68024448, while the sum is 66.

The spelling of 9931914693264 in words is "nine trillion, nine hundred thirty-one billion, nine hundred fourteen million, six hundred ninety-three thousand, two hundred sixty-four".