90507818622 has 16 divisors (see below), whose sum is σ = 194939917200. Its totient is φ = 27848559552.

The previous prime is 90507818617. The next prime is 90507818651. The reversal of 90507818622 is 22681870509.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 580178247 + ... + 580178402.

It is an arithmetic number, because the mean of its divisors is an integer number (12183744825).

Almost surely, 2^90507818622 is an apocalyptic number.

90507818622 is an abundant number, since it is smaller than the sum of its proper divisors (104432098578).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

90507818622 is a wasteful number, since it uses less digits than its factorization.

90507818622 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1160356667.

The product of its (nonzero) digits is 483840, while the sum is 48.

The spelling of 90507818622 in words is "ninety billion, five hundred seven million, eight hundred eighteen thousand, six hundred twenty-two".