90992530372 has 12 divisors (see below), whose sum is σ = 159369523516. Its totient is φ = 45458380800.

The previous prime is 90992530357. The next prime is 90992530373. The reversal of 90992530372 is 27303529909.

It can be written as a sum of positive squares in 2 ways, for example, as 46662912256 + 44329618116 = 216016^2 + 210546^2 .

It is a hoax number, since the sum of its digits (49) coincides with the sum of the digits of its distinct prime factors.

It is not an unprimeable number, because it can be changed into a prime (90992530373) 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, 9465693 + ... + 9475300.

Almost surely, 2^90992530372 is an apocalyptic number.

It is an amenable number.

90992530372 is a deficient number, since it is larger than the sum of its proper divisors (68376993144).

90992530372 is a wasteful number, since it uses less digits than its factorization.

90992530372 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18942198 (or 18942196 counting only the distinct ones).

The product of its (nonzero) digits is 918540, while the sum is 49.

The spelling of 90992530372 in words is "ninety billion, nine hundred ninety-two million, five hundred thirty thousand, three hundred seventy-two".