90449973196 has 12 divisors (see below), whose sum is σ = 172677221640. Its totient is φ = 41113624160.

The previous prime is 90449973181. The next prime is 90449973239. The reversal of 90449973196 is 69137994409.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1027840561 + ... + 1027840648.

It is an arithmetic number, because the mean of its divisors is an integer number (14389768470).

Almost surely, 2^90449973196 is an apocalyptic number.

It is an amenable number.

90449973196 is a deficient number, since it is larger than the sum of its proper divisors (82227248444).

90449973196 is a wasteful number, since it uses less digits than its factorization.

90449973196 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2055681224 (or 2055681222 counting only the distinct ones).

The product of its (nonzero) digits is 13226976, while the sum is 61.

The spelling of 90449973196 in words is "ninety billion, four hundred forty-nine million, nine hundred seventy-three thousand, one hundred ninety-six".