90978483936 has 24 divisors (see below), whose sum is σ = 238818520584. Its totient is φ = 30326161280.

The previous prime is 90978483923. The next prime is 90978483943. The reversal of 90978483936 is 63938487909.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (24).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 473846175 + ... + 473846366.

It is an arithmetic number, because the mean of its divisors is an integer number (9950771691).

Almost surely, 2^90978483936 is an apocalyptic number.

90978483936 is a gapful number since it is divisible by the number (96) formed by its first and last digit.

It is an amenable number.

90978483936 is an abundant number, since it is smaller than the sum of its proper divisors (147840036648).

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

90978483936 is a wasteful number, since it uses less digits than its factorization.

90978483936 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 947692554 (or 947692546 counting only the distinct ones).

The product of its (nonzero) digits is 70543872, while the sum is 66.

The spelling of 90978483936 in words is "ninety billion, nine hundred seventy-eight million, four hundred eighty-three thousand, nine hundred thirty-six".