90063788392 has 32 divisors (see below), whose sum is σ = 173307420000. Its totient is φ = 43862482368.

The previous prime is 90063788387. The next prime is 90063788459. The reversal of 90063788392 is 29388736009.

It is a happy number.

It is a super-2 number, since 2×90063788392² (a number of 23 digits) contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 823842 + ... + 926737.

It is an arithmetic number, because the mean of its divisors is an integer number (5415856875).

Almost surely, 2^90063788392 is an apocalyptic number.

It is an amenable number.

90063788392 is a deficient number, since it is larger than the sum of its proper divisors (83243631608).

90063788392 is a wasteful number, since it uses less digits than its factorization.

90063788392 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1750753 (or 1750749 counting only the distinct ones).

The product of its (nonzero) digits is 3919104, while the sum is 55.

The spelling of 90063788392 in words is "ninety billion, sixty-three million, seven hundred eighty-eight thousand, three hundred ninety-two".