909946820872 has 16 divisors (see below), whose sum is σ = 1722095620560. Its totient is φ = 450721322064.

The previous prime is 909946820659. The next prime is 909946820891. The reversal of 909946820872 is 278028649909.

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, 531510138 + ... + 531511849.

It is an arithmetic number, because the mean of its divisors is an integer number (107630976285).

Almost surely, 2^909946820872 is an apocalyptic number.

It is an amenable number.

909946820872 is a deficient number, since it is larger than the sum of its proper divisors (812148799688).

909946820872 is a wasteful number, since it uses less digits than its factorization.

909946820872 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1063022100 (or 1063022096 counting only the distinct ones).

The product of its (nonzero) digits is 31352832, while the sum is 64.

The spelling of 909946820872 in words is "nine hundred nine billion, nine hundred forty-six million, eight hundred twenty thousand, eight hundred seventy-two".