3639640913904 has 40 divisors (see below), whose sum is σ = 9424739251792. Its totient is φ = 1210331888640.

The previous prime is 3639640913897. The next prime is 3639640913917. The reversal of 3639640913904 is 4093190469363.

It is a congruent number.

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, 90034249 + ... + 90074664.

Almost surely, 2^{3639640913904} is an apocalyptic number.

It is an amenable number.

3639640913904 is an abundant number, since it is smaller than the sum of its proper divisors (5785098337888).

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

3639640913904 is a wasteful number, since it uses less digits than its factorization.

3639640913904 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 180109345 (or 180109339 counting only the distinct ones).

The product of its (nonzero) digits is 11337408, while the sum is 57.

The spelling of 3639640913904 in words is "three trillion, six hundred thirty-nine billion, six hundred forty million, nine hundred thirteen thousand, nine hundred four".