61579479074 has 16 divisors (see below), whose sum is σ = 94745269080. Its totient is φ = 29999677440.

The previous prime is 61579479067. The next prime is 61579479089. The reversal of 61579479074 is 47097497516.

It can be written as a sum of positive squares in 4 ways, for example, as 16565491849 + 45013987225 = 128707^2 + 212165^2 .

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, 425219 + ... + 551334.

Almost surely, 2^61579479074 is an apocalyptic number.

61579479074 is a deficient number, since it is larger than the sum of its proper divisors (33165790006).

61579479074 is a wasteful number, since it uses less digits than its factorization.

61579479074 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 977365.

The product of its (nonzero) digits is 13335840, while the sum is 59.

The spelling of 61579479074 in words is "sixty-one billion, five hundred seventy-nine million, four hundred seventy-nine thousand, seventy-four".