90693702908 has 12 divisors (see below), whose sum is σ = 158816189280. Its totient is φ = 45317648832.

The previous prime is 90693702907. The next prime is 90693702973. The reversal of 90693702908 is 80920739609.

It is a self number, because there is not a number n which added to its sum of digits gives 90693702908.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (90693702907) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7293668 + ... + 7306091.

It is an arithmetic number, because the mean of its divisors is an integer number (13234682440).

Almost surely, 2^90693702908 is an apocalyptic number.

It is an amenable number.

90693702908 is a deficient number, since it is larger than the sum of its proper divisors (68122486372).

90693702908 is a wasteful number, since it uses less digits than its factorization.

90693702908 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14601316 (or 14601314 counting only the distinct ones).

The product of its (nonzero) digits is 1469664, while the sum is 53.

The spelling of 90693702908 in words is "ninety billion, six hundred ninety-three million, seven hundred two thousand, nine hundred eight".