61306926865956 has 72 divisors (see below), whose sum is σ = 157237165429344. Its totient is φ = 20137226520960.

The previous prime is 61306926865907. The next prime is 61306926865979. The reversal of 61306926865956 is 65956862960316.

61306926865956 is a `hidden beast` number, since 6 + 1 + 3 + 0 + 6 + 9 + 26 + 8 + 6 + 595 + 6 = 666.

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, 7824126 + ... + 13558421.

It is an arithmetic number, because the mean of its divisors is an integer number (2183849519852).

Almost surely, 2^{61306926865956} is an apocalyptic number.

It is an amenable number.

61306926865956 is an abundant number, since it is smaller than the sum of its proper divisors (95930238563388).

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

61306926865956 is a wasteful number, since it uses less digits than its factorization.

61306926865956 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21383721 (or 21383716 counting only the distinct ones).

The product of its (nonzero) digits is 755827200, while the sum is 72.

The spelling of 61306926865956 in words is "sixty-one trillion, three hundred six billion, nine hundred twenty-six million, eight hundred sixty-five thousand, nine hundred fifty-six".