231479377108 has 12 divisors (see below), whose sum is σ = 462958754272. Its totient is φ = 99205447320.

The previous prime is 231479377093. The next prime is 231479377117. The reversal of 231479377108 is 801773974132.

231479377108 is an admirable number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4133560278 + ... + 4133560333.

Almost surely, 2^231479377108 is an apocalyptic number.

231479377108 is a gapful number since it is divisible by the number (28) formed by its first and last digit.

It is an amenable number.

231479377108 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

231479377108 is a wasteful number, since it uses less digits than its factorization.

231479377108 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8267120622 (or 8267120620 counting only the distinct ones).

The product of its (nonzero) digits is 1778112, while the sum is 52.

The spelling of 231479377108 in words is "two hundred thirty-one billion, four hundred seventy-nine million, three hundred seventy-seven thousand, one hundred eight".