61579479075 has 24 divisors (see below), whose sum is σ = 101825046768. Its totient is φ = 32837988480.

The previous prime is 61579479067. The next prime is 61579479089. The reversal of 61579479075 is 57097497516.

It is not a de Polignac number, because 61579479075 - 2³ = 61579479067 is a prime.

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, 552997 + ... + 654953.

It is an arithmetic number, because the mean of its divisors is an integer number (4242710282).

Almost surely, 2^61579479075 is an apocalyptic number.

61579479075 is a deficient number, since it is larger than the sum of its proper divisors (40245567693).

61579479075 is a wasteful number, since it uses less digits than its factorization.

61579479075 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 110023 (or 110018 counting only the distinct ones).

The product of its (nonzero) digits is 16669800, while the sum is 60.

The spelling of 61579479075 in words is "sixty-one billion, five hundred seventy-nine million, four hundred seventy-nine thousand, seventy-five".