90091599713288 has 32 divisors (see below), whose sum is σ = 173053752480000. Its totient is φ = 43944084263040.

The previous prime is 90091599713281. The next prime is 90091599713317. The reversal of 90091599713288 is 88231799519009.

It is not an unprimeable number, because it can be changed into a prime (90091599713281) 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, 4735988 + ... + 14234211.

It is an arithmetic number, because the mean of its divisors is an integer number (5407929765000).

Almost surely, 2^{90091599713288} is an apocalyptic number.

It is an amenable number.

90091599713288 is a deficient number, since it is larger than the sum of its proper divisors (82962152766712).

90091599713288 is a wasteful number, since it uses less digits than its factorization.

90091599713288 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18984725 (or 18984721 counting only the distinct ones).

The product of its (nonzero) digits is 88179840, while the sum is 71.

The spelling of 90091599713288 in words is "ninety trillion, ninety-one billion, five hundred ninety-nine million, seven hundred thirteen thousand, two hundred eighty-eight".