90877516799 has 4 divisors (see below), whose sum is σ = 91003911840. Its totient is φ = 90751121760.

The previous prime is 90877516757. The next prime is 90877516931. The reversal of 90877516799 is 99761577809.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 90877516799 - 2²⁰ = 90876468223 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (90877516729) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 63196442 + ... + 63197879.

It is an arithmetic number, because the mean of its divisors is an integer number (22750977960).

Almost surely, 2^90877516799 is an apocalyptic number.

90877516799 is a deficient number, since it is larger than the sum of its proper divisors (126395041).

90877516799 is a wasteful number, since it uses less digits than its factorization.

90877516799 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 126395040.

The product of its (nonzero) digits is 60011280, while the sum is 68.

The spelling of 90877516799 in words is "ninety billion, eight hundred seventy-seven million, five hundred sixteen thousand, seven hundred ninety-nine".