42640604624 has 20 divisors (see below), whose sum is σ = 84537479136. Its totient is φ = 20824480992.

The previous prime is 42640604623. The next prime is 42640604653.

42640604624 is nontrivially palindromic in base 10.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42640604623) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 30988124 + ... + 30989499.

Almost surely, 2^42640604624 is an apocalyptic number.

It is an amenable number.

42640604624 is a deficient number, since it is larger than the sum of its proper divisors (41896874512).

42640604624 is a wasteful number, since it uses less digits than its factorization.

42640604624 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 61977674 (or 61977668 counting only the distinct ones).

The product of its (nonzero) digits is 221184, while the sum is 38.

The spelling of 42640604624 in words is "forty-two billion, six hundred forty million, six hundred four thousand, six hundred twenty-four".