231687034880 has 192 divisors, whose sum is σ = 639993856320. Its totient is φ = 78852390912.

The previous prime is 231687034867. The next prime is 231687034913. The reversal of 231687034880 is 88430786132.

It is a super-2 number, since 2×231687034880² (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 15 ways as a sum of consecutive naturals, for example, 9808364 + ... + 9831956.

It is an arithmetic number, because the mean of its divisors is an integer number (3333301335).

Almost surely, 2^231687034880 is an apocalyptic number.

231687034880 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 231687034880, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (319996928160).

231687034880 is an abundant number, since it is smaller than the sum of its proper divisors (408306821440).

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

231687034880 is a wasteful number, since it uses less digits than its factorization.

231687034880 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23764 (or 23744 counting only the distinct ones).

The product of its (nonzero) digits is 1548288, while the sum is 50.

The spelling of 231687034880 in words is "two hundred thirty-one billion, six hundred eighty-seven million, thirty-four thousand, eight hundred eighty".