90986118444 has 144 divisors (see below), whose sum is σ = 261268250880. Its totient is φ = 26466549120.

The previous prime is 90986118413. The next prime is 90986118481. The reversal of 90986118444 is 44481168909.

It is a happy number.

90986118444 is a `hidden beast` number, since 9 + 0 + 9 + 86 + 118 + 444 = 666.

It is a super-2 number, since 2×90986118444² (a number of 23 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 4319899 + ... + 4340909.

Almost surely, 2^90986118444 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 90986118444, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (130634125440).

90986118444 is an abundant number, since it is smaller than the sum of its proper divisors (170282132436).

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

90986118444 is a wasteful number, since it uses less digits than its factorization.

90986118444 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21540 (or 21535 counting only the distinct ones).

The product of its (nonzero) digits is 1990656, while the sum is 54.

The spelling of 90986118444 in words is "ninety billion, nine hundred eighty-six million, one hundred eighteen thousand, four hundred forty-four".