3639004898401 has 2 divisors, whose sum is σ = 3639004898402. Its totient is φ = 3639004898400.

The previous prime is 3639004898387. The next prime is 3639004898437. The reversal of 3639004898401 is 1048984009363.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1892272608801 + 1746732289600 = 1375599^2 + 1321640^2 .

It is a cyclic number.

It is not a de Polignac number, because 3639004898401 - 2³⁹ = 3089249084513 is a prime.

It is not a weakly prime, because it can be changed into another prime (3639004898701) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1819502449200 + 1819502449201.

It is an arithmetic number, because the mean of its divisors is an integer number (1819502449201).

Almost surely, 2^{3639004898401} is an apocalyptic number.

It is an amenable number.

3639004898401 is a deficient number, since it is larger than the sum of its proper divisors (1).

3639004898401 is an equidigital number, since it uses as much as digits as its factorization.

3639004898401 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 4478976, while the sum is 55.

The spelling of 3639004898401 in words is "three trillion, six hundred thirty-nine billion, four million, eight hundred ninety-eight thousand, four hundred one".