90674057784 has 32 divisors (see below), whose sum is σ = 231508235520. Its totient is φ = 29581607136.

The previous prime is 90674057777. The next prime is 90674057801. The reversal of 90674057784 is 48775047609.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 40191274 + ... + 40193529.

It is an arithmetic number, because the mean of its divisors is an integer number (7234632360).

Almost surely, 2^90674057784 is an apocalyptic number.

90674057784 is a gapful number since it is divisible by the number (94) formed by its first and last digit.

It is an amenable number.

90674057784 is an abundant number, since it is smaller than the sum of its proper divisors (140834177736).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

90674057784 is a wasteful number, since it uses less digits than its factorization.

90674057784 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 80384859 (or 80384855 counting only the distinct ones).

The product of its (nonzero) digits is 11854080, while the sum is 57.

The spelling of 90674057784 in words is "ninety billion, six hundred seventy-four million, fifty-seven thousand, seven hundred eighty-four".