64257131260 has 48 divisors (see below), whose sum is σ = 154674846144. Its totient is φ = 21965626368.

The previous prime is 64257131209. The next prime is 64257131269. The reversal of 64257131260 is 6213175246.

64257131260 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (64257131269) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 633799 + ... + 728158.

It is an arithmetic number, because the mean of its divisors is an integer number (3222392628).

Almost surely, 2^64257131260 is an apocalyptic number.

It is an amenable number.

64257131260 is an abundant number, since it is smaller than the sum of its proper divisors (90417714884).

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

64257131260 is a wasteful number, since it uses less digits than its factorization.

64257131260 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1362310 (or 1362308 counting only the distinct ones).

The product of its (nonzero) digits is 60480, while the sum is 37.

The spelling of 64257131260 in words is "sixty-four billion, two hundred fifty-seven million, one hundred thirty-one thousand, two hundred sixty".