90420964756 has 12 divisors (see below), whose sum is σ = 158281174240. Its totient is φ = 45197772120.

The previous prime is 90420964747. The next prime is 90420964757. The reversal of 90420964756 is 65746902409.

It is a hoax number, since the sum of its digits (52) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (90420964757) 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, 3161550 + ... + 3190021.

Almost surely, 2^90420964756 is an apocalyptic number.

It is an amenable number.

90420964756 is a deficient number, since it is larger than the sum of its proper divisors (67860209484).

90420964756 is a wasteful number, since it uses less digits than its factorization.

90420964756 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6355134 (or 6355132 counting only the distinct ones).

The product of its (nonzero) digits is 3265920, while the sum is 52.

The spelling of 90420964756 in words is "ninety billion, four hundred twenty million, nine hundred sixty-four thousand, seven hundred fifty-six".