23131696157784 has 96 divisors (see below), whose sum is σ = 64814504508000. Its totient is φ = 7444009176576.

The previous prime is 23131696157711. The next prime is 23131696157789. The reversal of 23131696157784 is 48775169613132.

23131696157784 is a `hidden beast` number, since 2 + 3 + 1 + 3 + 1 + 6 + 9 + 615 + 7 + 7 + 8 + 4 = 666.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23131696157789) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 22803604 + ... + 23796380.

It is an arithmetic number, because the mean of its divisors is an integer number (675151088625).

Almost surely, 2^{23131696157784} is an apocalyptic number.

23131696157784 is a gapful number since it is divisible by the number (24) formed by its first and last digit.

It is an amenable number.

23131696157784 is an abundant number, since it is smaller than the sum of its proper divisors (41682808350216).

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

23131696157784 is a wasteful number, since it uses less digits than its factorization.

23131696157784 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1003977 (or 1003970 counting only the distinct ones).

The product of its digits is 45722880, while the sum is 63.

The spelling of 23131696157784 in words is "twenty-three trillion, one hundred thirty-one billion, six hundred ninety-six million, one hundred fifty-seven thousand, seven hundred eighty-four".