461998994841 has 8 divisors (see below), whose sum is σ = 684442955360. Its totient is φ = 307999329876.

The previous prime is 461998994839. The next prime is 461998994857. The reversal of 461998994841 is 148499899164.

461998994841 is a `hidden beast` number, since 4 + 61 + 9 + 9 + 89 + 9 + 484 + 1 = 666.

It is not a de Polignac number, because 461998994841 - 2¹ = 461998994839 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 461998994841.

It is not an unprimeable number, because it can be changed into a prime (461998994441) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8555536915 + ... + 8555536968.

It is an arithmetic number, because the mean of its divisors is an integer number (85555369420).

Almost surely, 2^461998994841 is an apocalyptic number.

It is an amenable number.

461998994841 is a deficient number, since it is larger than the sum of its proper divisors (222443960519).

461998994841 is a wasteful number, since it uses less digits than its factorization.

461998994841 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17111073892 (or 17111073886 counting only the distinct ones).

The product of its digits is 161243136, while the sum is 72.

The spelling of 461998994841 in words is "four hundred sixty-one billion, nine hundred ninety-eight million, nine hundred ninety-four thousand, eight hundred forty-one".