461408278857 has 16 divisors (see below), whose sum is σ = 617313302400. Its totient is φ = 306554896512.

The previous prime is 461408278829. The next prime is 461408278861. The reversal of 461408278857 is 758872804164.

It is not a de Polignac number, because 461408278857 - 2²⁰ = 461407230281 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 461408278857.

It is not an unprimeable number, because it can be changed into a prime (461408278897) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3688269 + ... + 3811317.

It is an arithmetic number, because the mean of its divisors is an integer number (38582081400).

Almost surely, 2^461408278857 is an apocalyptic number.

It is an amenable number.

461408278857 is a deficient number, since it is larger than the sum of its proper divisors (155905023543).

461408278857 is a wasteful number, since it uses less digits than its factorization.

461408278857 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 127312.

The product of its (nonzero) digits is 24084480, while the sum is 60.

The spelling of 461408278857 in words is "four hundred sixty-one billion, four hundred eight million, two hundred seventy-eight thousand, eight hundred fifty-seven".