90507399592 has 8 divisors (see below), whose sum is σ = 169701374250. Its totient is φ = 45253699792.

The previous prime is 90507399589. The next prime is 90507399623. The reversal of 90507399592 is 29599370509.

It can be written as a sum of positive squares in only one way, i.e., 89667906916 + 839492676 = 299446^2 + 28974^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5656712467 + ... + 5656712482.

Almost surely, 2^90507399592 is an apocalyptic number.

It is an amenable number.

90507399592 is a deficient number, since it is larger than the sum of its proper divisors (79193974658).

90507399592 is a wasteful number, since it uses less digits than its factorization.

90507399592 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11313424955 (or 11313424951 counting only the distinct ones).

The product of its (nonzero) digits is 6889050, while the sum is 58.

The spelling of 90507399592 in words is "ninety billion, five hundred seven million, three hundred ninety-nine thousand, five hundred ninety-two".