461668518 has 16 divisors (see below), whose sum is σ = 1025930160. Its totient is φ = 153889488.

The previous prime is 461668481. The next prime is 461668549. The reversal of 461668518 is 815866164.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4274655 + ... + 4274762.

It is an arithmetic number, because the mean of its divisors is an integer number (64120635).

Almost surely, 2^461668518 is an apocalyptic number.

461668518 is an abundant number, since it is smaller than the sum of its proper divisors (564261642).

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

461668518 is a wasteful number, since it uses less digits than its factorization.

461668518 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8549428 (or 8549422 counting only the distinct ones).

The product of its digits is 276480, while the sum is 45.

The square root of 461668518 is about 21486.4729073899. The cubic root of 461668518 is about 772.8764721690.

The spelling of 461668518 in words is "four hundred sixty-one million, six hundred sixty-eight thousand, five hundred eighteen".