461993365144 has 8 divisors (see below), whose sum is σ = 866237559660. Its totient is φ = 230996682568.

The previous prime is 461993365139. The next prime is 461993365157. The reversal of 461993365144 is 441563399164.

It is a tau number, because it is divible by the number of its divisors (8).

It is a hoax number, since the sum of its digits (55) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 28874585314 + ... + 28874585329.

Almost surely, 2^461993365144 is an apocalyptic number.

It is an amenable number.

461993365144 is a deficient number, since it is larger than the sum of its proper divisors (404244194516).

461993365144 is a wasteful number, since it uses less digits than its factorization.

461993365144 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 57749170649 (or 57749170645 counting only the distinct ones).

The product of its digits is 8398080, while the sum is 55.

The spelling of 461993365144 in words is "four hundred sixty-one billion, nine hundred ninety-three million, three hundred sixty-five thousand, one hundred forty-four".