90768046975 has 12 divisors (see below), whose sum is σ = 117445960656. Its totient is φ = 69457287680.

The previous prime is 90768046891. The next prime is 90768046979. The reversal of 90768046975 is 57964086709.

It is not a de Polignac number, because 90768046975 - 2⁷ = 90768046847 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (90768046979) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 78928162 + ... + 78929311.

It is an arithmetic number, because the mean of its divisors is an integer number (9787163388).

Almost surely, 2^90768046975 is an apocalyptic number.

90768046975 is a deficient number, since it is larger than the sum of its proper divisors (26677913681).

90768046975 is a wasteful number, since it uses less digits than its factorization.

90768046975 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 157857506 (or 157857501 counting only the distinct ones).

The product of its (nonzero) digits is 22861440, while the sum is 61.

The spelling of 90768046975 in words is "ninety billion, seven hundred sixty-eight million, forty-six thousand, nine hundred seventy-five".