461631840767 has 4 divisors (see below), whose sum is σ = 461770513920. Its totient is φ = 461493167616.

The previous prime is 461631840763. The next prime is 461631840841. The reversal of 461631840767 is 767048136164.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 461631840767 - 2² = 461631840763 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 (461631840763) 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, 69331583 + ... + 69338240.

It is an arithmetic number, because the mean of its divisors is an integer number (115442628480).

Almost surely, 2^461631840767 is an apocalyptic number.

461631840767 is a deficient number, since it is larger than the sum of its proper divisors (138673153).

461631840767 is a wasteful number, since it uses less digits than its factorization.

461631840767 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 138673152.

The product of its (nonzero) digits is 4064256, while the sum is 53.

The spelling of 461631840767 in words is "four hundred sixty-one billion, six hundred thirty-one million, eight hundred forty thousand, seven hundred sixty-seven".