90504254802 has 16 divisors (see below), whose sum is σ = 194932241280. Its totient is φ = 27847462992.

The previous prime is 90504254783. The next prime is 90504254803. The reversal of 90504254802 is 20845240509.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is not an unprimeable number, because it can be changed into a prime (90504254803) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 580155402 + ... + 580155557.

It is an arithmetic number, because the mean of its divisors is an integer number (12183265080).

Almost surely, 2^90504254802 is an apocalyptic number.

90504254802 is an abundant number, since it is smaller than the sum of its proper divisors (104427986478).

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

90504254802 is a wasteful number, since it uses less digits than its factorization.

90504254802 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1160310977.

The product of its (nonzero) digits is 115200, while the sum is 39.

The spelling of 90504254802 in words is "ninety billion, five hundred four million, two hundred fifty-four thousand, eight hundred two".