90083572917 has 48 divisors (see below), whose sum is σ = 142154915328. Its totient is φ = 50491883520.

The previous prime is 90083572897. The next prime is 90083572961. The reversal of 90083572917 is 71927538009.

It is not a de Polignac number, because 90083572917 - 2³⁰ = 89009831093 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (51).

It is a self number, because there is not a number n which added to its sum of digits gives 90083572917.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (90083572717) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 98613 + ... + 435765.

It is an arithmetic number, because the mean of its divisors is an integer number (2961560736).

Almost surely, 2^90083572917 is an apocalyptic number.

It is an amenable number.

90083572917 is a deficient number, since it is larger than the sum of its proper divisors (52071342411).

90083572917 is a wasteful number, since it uses less digits than its factorization.

90083572917 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 337230 (or 337217 counting only the distinct ones).

The product of its (nonzero) digits is 952560, while the sum is 51.

The spelling of 90083572917 in words is "ninety billion, eighty-three million, five hundred seventy-two thousand, nine hundred seventeen".