90479563775 has 12 divisors (see below), whose sum is σ = 112285986600. Its totient is φ = 72324730080.

The previous prime is 90479563723. The next prime is 90479563781. The reversal of 90479563775 is 57736597409.

It is not a de Polignac number, because 90479563775 - 2⁶ = 90479563711 is a prime.

It is a congruent number.

It is an unprimeable number.

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 11 ways as a sum of consecutive naturals, for example, 1441685 + ... + 1503134.

It is an arithmetic number, because the mean of its divisors is an integer number (9357165550).

Almost surely, 2^90479563775 is an apocalyptic number.

90479563775 is a deficient number, since it is larger than the sum of its proper divisors (21806422825).

90479563775 is a wasteful number, since it uses less digits than its factorization.

90479563775 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2946058 (or 2946053 counting only the distinct ones).

The product of its (nonzero) digits is 50009400, while the sum is 62.

The spelling of 90479563775 in words is "ninety billion, four hundred seventy-nine million, five hundred sixty-three thousand, seven hundred seventy-five".