90791027208 has 48 divisors (see below), whose sum is σ = 281019847680. Its totient is φ = 25940293344.

The previous prime is 90791027183. The next prime is 90791027209. The reversal of 90791027208 is 80272019709.

It is not an unprimeable number, because it can be changed into a prime (90791027209) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 90069960 + ... + 90070967.

It is an arithmetic number, because the mean of its divisors is an integer number (5854580160).

Almost surely, 2^90791027208 is an apocalyptic number.

It is an amenable number.

90791027208 is an abundant number, since it is smaller than the sum of its proper divisors (190228820472).

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

90791027208 is a wasteful number, since it uses less digits than its factorization.

90791027208 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 180140946 (or 180140939 counting only the distinct ones).

The product of its (nonzero) digits is 127008, while the sum is 45.

The spelling of 90791027208 in words is "ninety billion, seven hundred ninety-one million, twenty-seven thousand, two hundred eight".