3638216103408 has 60 divisors (see below), whose sum is σ = 10398589307808. Its totient is φ = 1186935747840.

The previous prime is 3638216103331. The next prime is 3638216103419. The reversal of 3638216103408 is 8043016128363.

3638216103408 is a `hidden beast` number, since 3 + 6 + 3 + 8 + 21 + 610 + 3 + 4 + 0 + 8 = 666.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 268773973 + ... + 268787508.

Almost surely, 2^{3638216103408} is an apocalyptic number.

It is an amenable number.

3638216103408 is an abundant number, since it is smaller than the sum of its proper divisors (6760373204400).

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

3638216103408 is a wasteful number, since it uses less digits than its factorization.

3638216103408 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 537561542 (or 537561533 counting only the distinct ones).

The product of its (nonzero) digits is 497664, while the sum is 45.

The spelling of 3638216103408 in words is "three trillion, six hundred thirty-eight billion, two hundred sixteen million, one hundred three thousand, four hundred eight".