90242688984 has 128 divisors (see below), whose sum is σ = 262545338880. Its totient is φ = 25314278400.

The previous prime is 90242688937. The next prime is 90242688997. The reversal of 90242688984 is 48988624209.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 5761804 + ... + 5777444.

It is an arithmetic number, because the mean of its divisors is an integer number (2051135460).

Almost surely, 2^90242688984 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 90242688984, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (131272669440).

90242688984 is an abundant number, since it is smaller than the sum of its proper divisors (172302649896).

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

90242688984 is a wasteful number, since it uses less digits than its factorization.

90242688984 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16281 (or 16277 counting only the distinct ones).

The product of its (nonzero) digits is 15925248, while the sum is 60.

The spelling of 90242688984 in words is "ninety billion, two hundred forty-two million, six hundred eighty-eight thousand, nine hundred eighty-four".