40643634604 has 48 divisors (see below), whose sum is σ = 75403335168. Its totient is φ = 19128624768.

The previous prime is 40643634587. The next prime is 40643634641.

It is a happy number.

40643634604 is nontrivially palindromic in base 10.

40643634604 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 7350889 + ... + 7356415.

It is an arithmetic number, because the mean of its divisors is an integer number (1570902816).

Almost surely, 2^40643634604 is an apocalyptic number.

It is an amenable number.

40643634604 is a deficient number, since it is larger than the sum of its proper divisors (34759700564).

40643634604 is a wasteful number, since it uses less digits than its factorization.

40643634604 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6814 (or 6812 counting only the distinct ones).

The product of its (nonzero) digits is 497664, while the sum is 40.

The spelling of 40643634604 in words is "forty billion, six hundred forty-three million, six hundred thirty-four thousand, six hundred four".