909645464546 has 96 divisors (see below), whose sum is σ = 1812991444992. Its totient is φ = 338109811200.

The previous prime is 909645464531. The next prime is 909645464599. The reversal of 909645464546 is 645464546909.

It is a super-2 number, since 2×909645464546² (a number of 25 digits) contains 22 as substring.

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 47 ways as a sum of consecutive naturals, for example, 12677471 + ... + 12749021.

It is an arithmetic number, because the mean of its divisors is an integer number (18885327552).

Almost surely, 2^909645464546 is an apocalyptic number.

909645464546 is a deficient number, since it is larger than the sum of its proper divisors (903345980446).

909645464546 is a wasteful number, since it uses less digits than its factorization.

909645464546 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 72184 (or 72177 counting only the distinct ones).

The product of its (nonzero) digits is 111974400, while the sum is 62.

The spelling of 909645464546 in words is "nine hundred nine billion, six hundred forty-five million, four hundred sixty-four thousand, five hundred forty-six".