90369733653 has 12 divisors (see below), whose sum is σ = 130760296108. Its totient is φ = 60142072320.

The previous prime is 90369733637. The next prime is 90369733667. The reversal of 90369733653 is 35633796309.

It can be written as a sum of positive squares in 2 ways, for example, as 42633164484 + 47736569169 = 206478^2 + 218487^2 .

It is not a de Polignac number, because 90369733653 - 2⁴ = 90369733637 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 90369733653.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (90369733693) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 8695918 + ... + 8706303.

Almost surely, 2^90369733653 is an apocalyptic number.

It is an amenable number.

90369733653 is a deficient number, since it is larger than the sum of its proper divisors (40390562455).

90369733653 is a wasteful number, since it uses less digits than its factorization.

90369733653 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17402804 (or 17402801 counting only the distinct ones).

The product of its (nonzero) digits is 8266860, while the sum is 54.

The spelling of 90369733653 in words is "ninety billion, three hundred sixty-nine million, seven hundred thirty-three thousand, six hundred fifty-three".