561680767013 has 16 divisors (see below), whose sum is σ = 578170595952. Its totient is φ = 545413440000.

The previous prime is 561680767009. The next prime is 561680767061. The reversal of 561680767013 is 310767086165.

It can be written as a sum of positive squares in 8 ways, for example, as 185987775169 + 375692991844 = 431263^2 + 612938^2 .

It is a cyclic number.

It is not a de Polignac number, because 561680767013 - 2² = 561680767009 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 (561680767313) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 14653433 + ... + 14691713.

It is an arithmetic number, because the mean of its divisors is an integer number (36135662247).

Almost surely, 2^561680767013 is an apocalyptic number.

561680767013 is a gapful number since it is divisible by the number (53) formed by its first and last digit.

It is an amenable number.

561680767013 is a deficient number, since it is larger than the sum of its proper divisors (16489828939).

561680767013 is a wasteful number, since it uses less digits than its factorization.

561680767013 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 41176.

The product of its (nonzero) digits is 1270080, while the sum is 50.

The spelling of 561680767013 in words is "five hundred sixty-one billion, six hundred eighty million, seven hundred sixty-seven thousand, thirteen".