90768493816 has 64 divisors (see below), whose sum is σ = 228508116480. Its totient is φ = 32644010880.

The previous prime is 90768493807. The next prime is 90768493843. The reversal of 90768493816 is 61839486709.

It is a congruent number.

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 15 ways as a sum of consecutive naturals, for example, 5659356 + ... + 5675371.

It is an arithmetic number, because the mean of its divisors is an integer number (3570439320).

Almost surely, 2^90768493816 is an apocalyptic number.

It is an amenable number.

90768493816 is an abundant number, since it is smaller than the sum of its proper divisors (137739622664).

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

90768493816 is a wasteful number, since it uses less digits than its factorization.

90768493816 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11334764 (or 11334760 counting only the distinct ones).

The product of its (nonzero) digits is 15676416, while the sum is 61.

The spelling of 90768493816 in words is "ninety billion, seven hundred sixty-eight million, four hundred ninety-three thousand, eight hundred sixteen".