561863315814 has 128 divisors (see below), whose sum is σ = 1229277358080. Its totient is φ = 170696807424.

The previous prime is 561863315789. The next prime is 561863315843. The reversal of 561863315814 is 418513368165.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 175088242 + ... + 175091450.

It is an arithmetic number, because the mean of its divisors is an integer number (9603729360).

Almost surely, 2^561863315814 is an apocalyptic number.

561863315814 is an abundant number, since it is smaller than the sum of its proper divisors (667414042266).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

561863315814 is a wasteful number, since it uses less digits than its factorization.

561863315814 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3974.

The product of its digits is 2073600, while the sum is 51.

The spelling of 561863315814 in words is "five hundred sixty-one billion, eight hundred sixty-three million, three hundred fifteen thousand, eight hundred fourteen".