12731255700 has 72 divisors (see below), whose sum is σ = 36849620640. Its totient is φ = 3393724800.

The previous prime is 12731255689. The next prime is 12731255717. The reversal of 12731255700 is 755213721.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1005006 + ... + 1017594.

Almost surely, 2^12731255700 is an apocalyptic number.

12731255700 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12731255700 is an abundant number, since it is smaller than the sum of its proper divisors (24118364940).

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

12731255700 is a wasteful number, since it uses less digits than its factorization.

12731255700 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15977 (or 15970 counting only the distinct ones).

The product of its (nonzero) digits is 14700, while the sum is 33.

The spelling of 12731255700 in words is "twelve billion, seven hundred thirty-one million, two hundred fifty-five thousand, seven hundred".