561672777319 has 2 divisors, whose sum is σ = 561672777320. Its totient is φ = 561672777318.

The previous prime is 561672777311. The next prime is 561672777361. The reversal of 561672777319 is 913777276165.

561672777319 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 561672777319 - 2³ = 561672777311 is a prime.

It is a super-2 number, since 2×561672777319² (a number of 24 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (561672777311) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 280836388659 + 280836388660.

It is an arithmetic number, because the mean of its divisors is an integer number (280836388660).

Almost surely, 2^561672777319 is an apocalyptic number.

561672777319 is a deficient number, since it is larger than the sum of its proper divisors (1).

561672777319 is an equidigital number, since it uses as much as digits as its factorization.

561672777319 is an evil number, because the sum of its binary digits is even.

The product of its digits is 23337720, while the sum is 61.

The spelling of 561672777319 in words is "five hundred sixty-one billion, six hundred seventy-two million, seven hundred seventy-seven thousand, three hundred nineteen".