90977905503 has 24 divisors (see below), whose sum is σ = 133220193600. Its totient is φ = 59819295744.

The previous prime is 90977905489. The next prime is 90977905549. The reversal of 90977905503 is 30550977909.

It is not a de Polignac number, because 90977905503 - 2⁶ = 90977905439 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 90977905503.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (90977905103) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 591651 + ... + 729387.

It is an arithmetic number, because the mean of its divisors is an integer number (5550841400).

Almost surely, 2^90977905503 is an apocalyptic number.

90977905503 is a deficient number, since it is larger than the sum of its proper divisors (42242288097).

90977905503 is a wasteful number, since it uses less digits than its factorization.

90977905503 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 138751 (or 138748 counting only the distinct ones).

The product of its (nonzero) digits is 2679075, while the sum is 54.

The spelling of 90977905503 in words is "ninety billion, nine hundred seventy-seven million, nine hundred five thousand, five hundred three".