3638404000004 has 12 divisors (see below), whose sum is σ = 6367222971228. Its totient is φ = 1819197436800.

The previous prime is 3638403999959. The next prime is 3638404000067. The reversal of 3638404000004 is 4000004048363.

It can be written as a sum of positive squares in 2 ways, for example, as 2276869744900 + 1361534255104 = 1508930^2 + 1166848^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1175984 + ... + 2942744.

It is an arithmetic number, because the mean of its divisors is an integer number (530601914269).

Almost surely, 2^{3638404000004} is an apocalyptic number.

It is an amenable number.

3638404000004 is a deficient number, since it is larger than the sum of its proper divisors (2728818971224).

3638404000004 is a wasteful number, since it uses less digits than its factorization.

3638404000004 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2281606 (or 2281604 counting only the distinct ones).

The product of its (nonzero) digits is 27648, while the sum is 32.

Adding to 3638404000004 its reverse (4000004048363), we get a palindrome (7638408048367).

The spelling of 3638404000004 in words is "three trillion, six hundred thirty-eight billion, four hundred four million, four", and thus it is an aban number.