31645795080 has 32 divisors (see below), whose sum is σ = 94937385600. Its totient is φ = 8438878656.

The previous prime is 31645795063. The next prime is 31645795091. The reversal of 31645795080 is 8059754613.

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, 131857360 + ... + 131857599.

It is an arithmetic number, because the mean of its divisors is an integer number (2966793300).

Almost surely, 2^31645795080 is an apocalyptic number.

31645795080 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

31645795080 is an abundant number, since it is smaller than the sum of its proper divisors (63291590520).

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

31645795080 is a wasteful number, since it uses less digits than its factorization.

31645795080 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 263714973 (or 263714969 counting only the distinct ones).

The product of its (nonzero) digits is 907200, while the sum is 48.

The spelling of 31645795080 in words is "thirty-one billion, six hundred forty-five million, seven hundred ninety-five thousand, eighty".