231895070780 has 24 divisors (see below), whose sum is σ = 490697056080. Its totient is φ = 92049950720.

The previous prime is 231895070761. The next prime is 231895070833. The reversal of 231895070780 is 87070598132.

It is a super-2 number, since 2×231895070780² (a number of 24 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 44252165 + ... + 44257404.

It is an arithmetic number, because the mean of its divisors is an integer number (20445710670).

Almost surely, 2^231895070780 is an apocalyptic number.

231895070780 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

231895070780 is an abundant number, since it is smaller than the sum of its proper divisors (258801985300).

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

231895070780 is a wasteful number, since it uses less digits than its factorization.

231895070780 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 88509709 (or 88509707 counting only the distinct ones).

The product of its (nonzero) digits is 846720, while the sum is 50.

The spelling of 231895070780 in words is "two hundred thirty-one billion, eight hundred ninety-five million, seventy thousand, seven hundred eighty".