90400884413938 has 16 divisors (see below), whose sum is σ = 155638064649600. Its totient is φ = 38576956192416.

The previous prime is 90400884413869. The next prime is 90400884413981. The reversal of 90400884413938 is 83931448800409.

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, 13856662038 + ... + 13856668561.

It is an arithmetic number, because the mean of its divisors is an integer number (9727379040600).

Almost surely, 2^{90400884413938} is an apocalyptic number.

90400884413938 is a deficient number, since it is larger than the sum of its proper divisors (65237180235662).

90400884413938 is a wasteful number, since it uses less digits than its factorization.

90400884413938 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27713330841.

The product of its (nonzero) digits is 23887872, while the sum is 61.

The spelling of 90400884413938 in words is "ninety trillion, four hundred billion, eight hundred eighty-four million, four hundred thirteen thousand, nine hundred thirty-eight".