90627685331 has 16 divisors (see below), whose sum is σ = 92611257984. Its totient is φ = 88654710144.

The previous prime is 90627685297. The next prime is 90627685333. The reversal of 90627685331 is 13358672609.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-90627685331 is a prime.

It is a super-2 number, since 2×90627685331² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 90627685331.

It is not an unprimeable number, because it can be changed into a prime (90627685333) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 30961190 + ... + 30964116.

It is an arithmetic number, because the mean of its divisors is an integer number (5788203624).

Almost surely, 2^90627685331 is an apocalyptic number.

90627685331 is a deficient number, since it is larger than the sum of its proper divisors (1983572653).

90627685331 is a wasteful number, since it uses less digits than its factorization.

90627685331 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4510.

The product of its (nonzero) digits is 1632960, while the sum is 50.

The spelling of 90627685331 in words is "ninety billion, six hundred twenty-seven million, six hundred eighty-five thousand, three hundred thirty-one".