90791012012 has 12 divisors (see below), whose sum is σ = 162579254376. Its totient is φ = 44339796480.

The previous prime is 90791011991. The next prime is 90791012021. The reversal of 90791012012 is 21021019709.

It is a self number, because there is not a number n which added to its sum of digits gives 90791012012.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 263927189 + ... + 263927532.

It is an arithmetic number, because the mean of its divisors is an integer number (13548271198).

Almost surely, 2^90791012012 is an apocalyptic number.

It is an amenable number.

90791012012 is a deficient number, since it is larger than the sum of its proper divisors (71788242364).

90791012012 is a wasteful number, since it uses less digits than its factorization.

90791012012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 527854768 (or 527854766 counting only the distinct ones).

The product of its (nonzero) digits is 2268, while the sum is 32.

The spelling of 90791012012 in words is "ninety billion, seven hundred ninety-one million, twelve thousand, twelve".