561535506267213 has 8 divisors (see below), whose sum is σ = 748745423464768. Its totient is φ = 374341296623904.

The previous prime is 561535506267209. The next prime is 561535506267301. The reversal of 561535506267213 is 312762605535165.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 561535506267213 - 2² = 561535506267209 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 (561535506263213) 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, 3926805145 + ... + 3926948142.

It is an arithmetic number, because the mean of its divisors is an integer number (93593177933096).

Almost surely, 2^{561535506267213} is an apocalyptic number.

It is an amenable number.

561535506267213 is a deficient number, since it is larger than the sum of its proper divisors (187209917197555).

561535506267213 is a wasteful number, since it uses less digits than its factorization.

561535506267213 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7853777123.

The product of its (nonzero) digits is 34020000, while the sum is 57.

The spelling of 561535506267213 in words is "five hundred sixty-one trillion, five hundred thirty-five billion, five hundred six million, two hundred sixty-seven thousand, two hundred thirteen".