61314887431960 has 32 divisors (see below), whose sum is σ = 138837213275760. Its totient is φ = 24369738696576.

The previous prime is 61314887431951. The next prime is 61314887432003. The reversal of 61314887431960 is 6913478841316.

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 7 ways as a sum of consecutive naturals, for example, 4881752274 + ... + 4881764833.

Almost surely, 2^{61314887431960} is an apocalyptic number.

It is an amenable number.

61314887431960 is an abundant number, since it is smaller than the sum of its proper divisors (77522325843800).

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

61314887431960 is a wasteful number, since it uses less digits than its factorization.

61314887431960 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9763517275 (or 9763517271 counting only the distinct ones).

The product of its (nonzero) digits is 20901888, while the sum is 61.

The spelling of 61314887431960 in words is "sixty-one trillion, three hundred fourteen billion, eight hundred eighty-seven million, four hundred thirty-one thousand, nine hundred sixty".