561714357987 has 8 divisors (see below), whose sum is σ = 832169419280. Its totient is φ = 374476238640.

The previous prime is 561714357977. The next prime is 561714358033. The reversal of 561714357987 is 789753417165.

561714357987 is a `hidden beast` number, since 5 + 6 + 17 + 1 + 43 + 579 + 8 + 7 = 666.

It is not a de Polignac number, because 561714357987 - 2⁶ = 561714357923 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (561714357977) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10402117714 + ... + 10402117767.

It is an arithmetic number, because the mean of its divisors is an integer number (104021177410).

Almost surely, 2^561714357987 is an apocalyptic number.

561714357987 is a deficient number, since it is larger than the sum of its proper divisors (270455061293).

561714357987 is a wasteful number, since it uses less digits than its factorization.

561714357987 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20804235490 (or 20804235484 counting only the distinct ones).

The product of its digits is 44452800, while the sum is 63.

The spelling of 561714357987 in words is "five hundred sixty-one billion, seven hundred fourteen million, three hundred fifty-seven thousand, nine hundred eighty-seven".