90473054378872 has 16 divisors (see below), whose sum is σ = 185058520320600. Its totient is φ = 41124115626720.

The previous prime is 90473054378849. The next prime is 90473054378899. The reversal of 90473054378872 is 27887345037409.

It is a junction number, because it is equal to n+sod(n) for n = 90473054378798 and 90473054378807.

It is a congruent number.

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, 514051445247 + ... + 514051445422.

Almost surely, 2^{90473054378872} is an apocalyptic number.

It is an amenable number.

90473054378872 is an abundant number, since it is smaller than the sum of its proper divisors (94585465941728).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

90473054378872 is a wasteful number, since it uses less digits than its factorization.

90473054378872 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1028102890686 (or 1028102890682 counting only the distinct ones).

The product of its (nonzero) digits is 284497920, while the sum is 67.

The spelling of 90473054378872 in words is "ninety trillion, four hundred seventy-three billion, fifty-four million, three hundred seventy-eight thousand, eight hundred seventy-two".