90635876544 has 28 divisors (see below), whose sum is σ = 239807423864. Its totient is φ = 30211958784.

The previous prime is 90635876531. The next prime is 90635876549. The reversal of 90635876544 is 44567853609.

It is not an unprimeable number, because it can be changed into a prime (90635876549) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 236030737 + ... + 236031120.

Almost surely, 2^90635876544 is an apocalyptic number.

It is an amenable number.

90635876544 is an abundant number, since it is smaller than the sum of its proper divisors (149171547320).

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

90635876544 is a wasteful number, since it uses less digits than its factorization.

90635876544 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 472061872 (or 472061862 counting only the distinct ones).

The product of its (nonzero) digits is 21772800, while the sum is 57.

The spelling of 90635876544 in words is "ninety billion, six hundred thirty-five million, eight hundred seventy-six thousand, five hundred forty-four".