90350374779 has 32 divisors (see below), whose sum is σ = 153008640000. Its totient is φ = 51617155392.

The previous prime is 90350374769. The next prime is 90350374781. The reversal of 90350374779 is 97747305309.

It is a happy number.

90350374779 is a `hidden beast` number, since 90 + 3 + 50 + 37 + 477 + 9 = 666.

It is not a de Polignac number, because 90350374779 - 2⁸ = 90350374523 is a prime.

It is not an unprimeable number, because it can be changed into a prime (90350374729) 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, 825247 + ... + 928295.

It is an arithmetic number, because the mean of its divisors is an integer number (4781520000).

Almost surely, 2^90350374779 is an apocalyptic number.

90350374779 is a deficient number, since it is larger than the sum of its proper divisors (62658265221).

90350374779 is a wasteful number, since it uses less digits than its factorization.

90350374779 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 107704 (or 107698 counting only the distinct ones).

The product of its (nonzero) digits is 5000940, while the sum is 54.

The spelling of 90350374779 in words is "ninety billion, three hundred fifty million, three hundred seventy-four thousand, seven hundred seventy-nine".