90481331915 has 8 divisors (see below), whose sum is σ = 116929721328. Its totient is φ = 66816983520.

The previous prime is 90481331893. The next prime is 90481331917. The reversal of 90481331915 is 51913318409.

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

It is a de Polignac number, because none of the positive numbers 2^k-90481331915 is a prime.

It is a super-2 number, since 2×90481331915² (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 (90481331917) 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, 696010181 + ... + 696010310.

It is an arithmetic number, because the mean of its divisors is an integer number (14616215166).

Almost surely, 2^90481331915 is an apocalyptic number.

90481331915 is a deficient number, since it is larger than the sum of its proper divisors (26448389413).

90481331915 is a wasteful number, since it uses less digits than its factorization.

90481331915 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1392020509.

The product of its (nonzero) digits is 116640, while the sum is 44.

The spelling of 90481331915 in words is "ninety billion, four hundred eighty-one million, three hundred thirty-one thousand, nine hundred fifteen".