251352708772 has 12 divisors (see below), whose sum is σ = 479855171376. Its totient is φ = 114251231240.

The previous prime is 251352708757. The next prime is 251352708799. The reversal of 251352708772 is 277807253152.

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, 2856280738 + ... + 2856280825.

It is an arithmetic number, because the mean of its divisors is an integer number (39987930948).

Almost surely, 2^251352708772 is an apocalyptic number.

251352708772 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

251352708772 is a deficient number, since it is larger than the sum of its proper divisors (228502462604).

251352708772 is a wasteful number, since it uses less digits than its factorization.

251352708772 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5712561578 (or 5712561576 counting only the distinct ones).

The product of its (nonzero) digits is 1646400, while the sum is 49.

The spelling of 251352708772 in words is "two hundred fifty-one billion, three hundred fifty-two million, seven hundred eight thousand, seven hundred seventy-two".