461569863 has 4 divisors (see below), whose sum is σ = 615426488. Its totient is φ = 307713240.

The previous prime is 461569861. The next prime is 461569879. The reversal of 461569863 is 368965164.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 461569863 - 2¹ = 461569861 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (461569861) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 76928308 + ... + 76928313.

It is an arithmetic number, because the mean of its divisors is an integer number (153856622).

Almost surely, 2^461569863 is an apocalyptic number.

461569863 is a deficient number, since it is larger than the sum of its proper divisors (153856625).

461569863 is a wasteful number, since it uses less digits than its factorization.

461569863 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 153856624.

The product of its digits is 933120, while the sum is 48.

The square root of 461569863 is about 21484.1770379971. The cubic root of 461569863 is about 772.8214156676.

The spelling of 461569863 in words is "four hundred sixty-one million, five hundred sixty-nine thousand, eight hundred sixty-three".