61437579696 has 60 divisors (see below), whose sum is σ = 172169144160. Its totient is φ = 20451888000.

The previous prime is 61437579683. The next prime is 61437579727. The reversal of 61437579696 is 69697573416.

61437579696 is a `hidden beast` number, since 61 + 437 + 57 + 9 + 6 + 96 = 666.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 175911 + ... + 392198.

It is an arithmetic number, because the mean of its divisors is an integer number (2869485736).

Almost surely, 2^61437579696 is an apocalyptic number.

It is an amenable number.

61437579696 is an abundant number, since it is smaller than the sum of its proper divisors (110731564464).

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

61437579696 is a wasteful number, since it uses less digits than its factorization.

61437579696 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 568874 (or 568865 counting only the distinct ones).

The product of its digits is 51438240, while the sum is 63.

The spelling of 61437579696 in words is "sixty-one billion, four hundred thirty-seven million, five hundred seventy-nine thousand, six hundred ninety-six".