90472090552864 has 24 divisors (see below), whose sum is σ = 178117140138588. Its totient is φ = 45235991470080.

The previous prime is 90472090552859. The next prime is 90472090552867. The reversal of 90472090552864 is 46825509027409.

It can be written as a sum of positive squares in 2 ways, for example, as 82749805342864 + 7722285210000 = 9096692^2 + 2778900^2 .

It is not an unprimeable number, because it can be changed into a prime (90472090552867) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 52828104 + ... + 54513784.

Almost surely, 2^{90472090552864} is an apocalyptic number.

It is an amenable number.

90472090552864 is a deficient number, since it is larger than the sum of its proper divisors (87645049585724).

90472090552864 is a wasteful number, since it uses less digits than its factorization.

90472090552864 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3362908 (or 3362900 counting only the distinct ones).

The product of its (nonzero) digits is 43545600, while the sum is 61.

The spelling of 90472090552864 in words is "ninety trillion, four hundred seventy-two billion, ninety million, five hundred fifty-two thousand, eight hundred sixty-four".