90970720108 has 24 divisors (see below), whose sum is σ = 164177314560. Its totient is φ = 44084633040.

The previous prime is 90970720069. The next prime is 90970720133. The reversal of 90970720108 is 80102707909.

It is a happy 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, 2697816 + ... + 2731327.

It is an arithmetic number, because the mean of its divisors is an integer number (6840721440).

Almost surely, 2^90970720108 is an apocalyptic number.

It is an amenable number.

90970720108 is a deficient number, since it is larger than the sum of its proper divisors (73206594452).

90970720108 is a wasteful number, since it uses less digits than its factorization.

90970720108 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5429277 (or 5429275 counting only the distinct ones).

The product of its (nonzero) digits is 63504, while the sum is 43.

The spelling of 90970720108 in words is "ninety billion, nine hundred seventy million, seven hundred twenty thousand, one hundred eight".