461985878 has 8 divisors (see below), whose sum is σ = 693147672. Its totient is φ = 230936656.

The previous prime is 461985869. The next prime is 461985907. The reversal of 461985878 is 878589164.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 17000 + ... + 34827.

It is an arithmetic number, because the mean of its divisors is an integer number (86643459).

Almost surely, 2^461985878 is an apocalyptic number.

461985878 is a deficient number, since it is larger than the sum of its proper divisors (231161794).

461985878 is a wasteful number, since it uses less digits than its factorization.

461985878 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 56286.

The product of its digits is 3870720, while the sum is 56.

The square root of 461985878 is about 21493.8567502438. The cubic root of 461985878 is about 773.0535284230.

The spelling of 461985878 in words is "four hundred sixty-one million, nine hundred eighty-five thousand, eight hundred seventy-eight".