231871610880 has 1056 divisors, whose sum is σ = 1025960068224. Its totient is φ = 48922361856.

The previous prime is 231871610879. The next prime is 231871610897. The reversal of 231871610880 is 88016178132.

It is a happy number.

231871610880 is a `hidden beast` number, since 23 + 1 + 8 + 7 + 1 + 610 + 8 + 8 + 0 = 666.

It is a super-2 number, since 2×231871610880² (a number of 24 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 17836277754 + ... + 17836277766.

Almost surely, 2^231871610880 is an apocalyptic number.

231871610880 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 231871610880, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (512980034112).

231871610880 is an abundant number, since it is smaller than the sum of its proper divisors (794088457344).

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

231871610880 is an frugal number, since it uses more digits than its factorization.

231871610880 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 82 (or 30 counting only the distinct ones).

The product of its (nonzero) digits is 129024, while the sum is 45.

The spelling of 231871610880 in words is "two hundred thirty-one billion, eight hundred seventy-one million, six hundred ten thousand, eight hundred eighty".