90717537331 has 8 divisors (see below), whose sum is σ = 90880107920. Its totient is φ = 90555034752.

The previous prime is 90717537311. The next prime is 90717537349. The reversal of 90717537331 is 13373571709.

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

It is a cyclic number.

It is not a de Polignac number, because 90717537331 - 2⁵ = 90717537299 is a prime.

It is a super-2 number, since 2×90717537331² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (90717537311) 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, 3180871 + ... + 3209263.

It is an arithmetic number, because the mean of its divisors is an integer number (11360013490).

Almost surely, 2^90717537331 is an apocalyptic number.

90717537331 is a deficient number, since it is larger than the sum of its proper divisors (162570589).

90717537331 is a wasteful number, since it uses less digits than its factorization.

90717537331 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 34005.

The product of its (nonzero) digits is 416745, while the sum is 46.

The spelling of 90717537331 in words is "ninety billion, seven hundred seventeen million, five hundred thirty-seven thousand, three hundred thirty-one".