90684559472 has 40 divisors (see below), whose sum is σ = 192786973344. Its totient is φ = 41064701184.

The previous prime is 90684559453. The next prime is 90684559477. The reversal of 90684559472 is 27495548609.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (90684559477) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4102028 + ... + 4124075.

Almost surely, 2^90684559472 is an apocalyptic number.

It is an amenable number.

90684559472 is an abundant number, since it is smaller than the sum of its proper divisors (102102413872).

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

90684559472 is a wasteful number, since it uses less digits than its factorization.

90684559472 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8226177 (or 8226171 counting only the distinct ones).

The product of its (nonzero) digits is 21772800, while the sum is 59.

The spelling of 90684559472 in words is "ninety billion, six hundred eighty-four million, five hundred fifty-nine thousand, four hundred seventy-two".