905812017964 has 12 divisors (see below), whose sum is σ = 1811624035984. Its totient is φ = 388205150544.

The previous prime is 905812017949. The next prime is 905812018021. The reversal of 905812017964 is 469710218509.

905812017964 is an admirable number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 16175214579 + ... + 16175214634.

Almost surely, 2^905812017964 is an apocalyptic number.

It is an amenable number.

905812017964 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

905812017964 is a wasteful number, since it uses less digits than its factorization.

905812017964 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32350429224 (or 32350429222 counting only the distinct ones).

The product of its (nonzero) digits is 1088640, while the sum is 52.

The spelling of 905812017964 in words is "nine hundred five billion, eight hundred twelve million, seventeen thousand, nine hundred sixty-four".