231375917568 has 320 divisors, whose sum is σ = 662605447680. Its totient is φ = 71530905600.

The previous prime is 231375917519. The next prime is 231375917609. The reversal of 231375917568 is 865719573132.

It is a Harshad number since it is a multiple of its sum of digits (57).

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 471233803 + ... + 471234293.

It is an arithmetic number, because the mean of its divisors is an integer number (2070642024).

Almost surely, 2^231375917568 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 231375917568, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (331302723840).

231375917568 is an abundant number, since it is smaller than the sum of its proper divisors (431229530112).

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

231375917568 is a wasteful number, since it uses less digits than its factorization.

231375917568 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 839 (or 823 counting only the distinct ones).

The product of its digits is 9525600, while the sum is 57.

The spelling of 231375917568 in words is "two hundred thirty-one billion, three hundred seventy-five million, nine hundred seventeen thousand, five hundred sixty-eight".