90393856108 has 6 divisors (see below), whose sum is σ = 158189248196. Its totient is φ = 45196928052.

The previous prime is 90393856061. The next prime is 90393856127. The reversal of 90393856108 is 80165839309.

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 as a sum of consecutive naturals, namely, 11299232010 + ... + 11299232017.

Almost surely, 2^90393856108 is an apocalyptic number.

It is an amenable number.

90393856108 is a deficient number, since it is larger than the sum of its proper divisors (67795392088).

90393856108 is a wasteful number, since it uses less digits than its factorization.

90393856108 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22598464031 (or 22598464029 counting only the distinct ones).

The product of its (nonzero) digits is 1399680, while the sum is 52.

The spelling of 90393856108 in words is "ninety billion, three hundred ninety-three million, eight hundred fifty-six thousand, one hundred eight".