90987412984 has 32 divisors (see below), whose sum is σ = 183810846240. Its totient is φ = 41974473600.

The previous prime is 90987412969. The next prime is 90987413051. The reversal of 90987412984 is 48921478909.

It is a super-3 number, since 3×90987412984³ (a number of 34 digits) contains 333 as substring.

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, 18349 + ... + 426979.

It is an arithmetic number, because the mean of its divisors is an integer number (5744088945).

Almost surely, 2^90987412984 is an apocalyptic number.

It is an amenable number.

90987412984 is an abundant number, since it is smaller than the sum of its proper divisors (92823433256).

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

90987412984 is a wasteful number, since it uses less digits than its factorization.

90987412984 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 410791 (or 410787 counting only the distinct ones).

The product of its (nonzero) digits is 10450944, while the sum is 61.

The spelling of 90987412984 in words is "ninety billion, nine hundred eighty-seven million, four hundred twelve thousand, nine hundred eighty-four".