90788937202 has 16 divisors (see below), whose sum is σ = 141072435000. Its totient is φ = 43789672960.

The previous prime is 90788937199. The next prime is 90788937209. The reversal of 90788937202 is 20273988709.

It can be written as a sum of positive squares in 4 ways, for example, as 14766867361 + 76022069841 = 121519^2 + 275721^2 .

It is a super-2 number, since 2×90788937202² (a number of 23 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (90788937209) 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, 6212827 + ... + 6227422.

Almost surely, 2^90788937202 is an apocalyptic number.

90788937202 is a deficient number, since it is larger than the sum of its proper divisors (50283497798).

90788937202 is a wasteful number, since it uses less digits than its factorization.

90788937202 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12440381.

The product of its (nonzero) digits is 3048192, while the sum is 55.

The spelling of 90788937202 in words is "ninety billion, seven hundred eighty-eight million, nine hundred thirty-seven thousand, two hundred two".