90321292617 has 8 divisors (see below), whose sum is σ = 126766726560. Its totient is φ = 57045026880.

The previous prime is 90321292597. The next prime is 90321292627. The reversal of 90321292617 is 71629212309.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 90321292617 - 2⁸ = 90321292361 is a prime.

It is not an unprimeable number, because it can be changed into a prime (90321292627) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 792291984 + ... + 792292097.

It is an arithmetic number, because the mean of its divisors is an integer number (15845840820).

Almost surely, 2^90321292617 is an apocalyptic number.

It is an amenable number.

90321292617 is a deficient number, since it is larger than the sum of its proper divisors (36445433943).

90321292617 is a wasteful number, since it uses less digits than its factorization.

90321292617 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1584584103.

The product of its (nonzero) digits is 81648, while the sum is 42.

The spelling of 90321292617 in words is "ninety billion, three hundred twenty-one million, two hundred ninety-two thousand, six hundred seventeen".