90797074671 has 32 divisors (see below), whose sum is σ = 123596812800. Its totient is φ = 59272974720.

The previous prime is 90797074663. The next prime is 90797074679. The reversal of 90797074671 is 17647079709.

It is an interprime number because it is at equal distance from previous prime (90797074663) and next prime (90797074679).

It is not a de Polignac number, because 90797074671 - 2³ = 90797074663 is a prime.

It is a super-2 number, since 2×90797074671² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (90797074679) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 84935925 + ... + 84936993.

It is an arithmetic number, because the mean of its divisors is an integer number (3862400400).

Almost surely, 2^90797074671 is an apocalyptic number.

90797074671 is a deficient number, since it is larger than the sum of its proper divisors (32799738129).

90797074671 is a wasteful number, since it uses less digits than its factorization.

90797074671 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2559.

The product of its (nonzero) digits is 4667544, while the sum is 57.

The spelling of 90797074671 in words is "ninety billion, seven hundred ninety-seven million, seventy-four thousand, six hundred seventy-one".