561682799999 has 4 divisors (see below), whose sum is σ = 566835853320. Its totient is φ = 556529746680.

The previous prime is 561682799983. The next prime is 561682800043. The reversal of 561682799999 is 999997286165.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 999997286165 = 5 ⋅199999457233.

It is a cyclic number.

It is not a de Polignac number, because 561682799999 - 2⁴ = 561682799983 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 (561682799099) 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, 2576526497 + ... + 2576526714.

It is an arithmetic number, because the mean of its divisors is an integer number (141708963330).

Almost surely, 2^561682799999 is an apocalyptic number.

561682799999 is a deficient number, since it is larger than the sum of its proper divisors (5153053321).

561682799999 is a wasteful number, since it uses less digits than its factorization.

561682799999 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5153053320.

The product of its digits is 1190427840, while the sum is 80.

The spelling of 561682799999 in words is "five hundred sixty-one billion, six hundred eighty-two million, seven hundred ninety-nine thousand, nine hundred ninety-nine".