61072406504 has 8 divisors (see below), whose sum is σ = 114510762210. Its totient is φ = 30536203248.

The previous prime is 61072406503. The next prime is 61072406513. The reversal of 61072406504 is 40560427016.

It can be written as a sum of positive squares in only one way, i.e., 56595458404 + 4476948100 = 237898^2 + 66910^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is not an unprimeable number, because it can be changed into a prime (61072406501) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3817025399 + ... + 3817025414.

Almost surely, 2^61072406504 is an apocalyptic number.

It is an amenable number.

61072406504 is a deficient number, since it is larger than the sum of its proper divisors (53438355706).

61072406504 is a wasteful number, since it uses less digits than its factorization.

61072406504 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7634050819 (or 7634050815 counting only the distinct ones).

The product of its (nonzero) digits is 40320, while the sum is 35.

The spelling of 61072406504 in words is "sixty-one billion, seventy-two million, four hundred six thousand, five hundred four".