461544663 has 4 divisors (see below), whose sum is σ = 615392888. Its totient is φ = 307696440.

The previous prime is 461544641. The next prime is 461544673. The reversal of 461544663 is 366445164.

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

It is not a de Polignac number, because 461544663 - 2⁵ = 461544631 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 (461544613) 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, 76924108 + ... + 76924113.

It is an arithmetic number, because the mean of its divisors is an integer number (153848222).

Almost surely, 2^461544663 is an apocalyptic number.

461544663 is a deficient number, since it is larger than the sum of its proper divisors (153848225).

461544663 is a wasteful number, since it uses less digits than its factorization.

461544663 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 153848224.

The product of its digits is 207360, while the sum is 39.

The square root of 461544663 is about 21483.5905518607. The cubic root of 461544663 is about 772.8073510187.

The spelling of 461544663 in words is "four hundred sixty-one million, five hundred forty-four thousand, six hundred sixty-three".