561190912391 has 2 divisors, whose sum is σ = 561190912392. Its totient is φ = 561190912390.

The previous prime is 561190912369. The next prime is 561190912427. The reversal of 561190912391 is 193219091165.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 561190912391 - 2³⁴ = 544011043207 is a prime.

It is a Sophie Germain prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (561190912351) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 280595456195 + 280595456196.

It is an arithmetic number, because the mean of its divisors is an integer number (280595456196).

Almost surely, 2^561190912391 is an apocalyptic number.

561190912391 is a deficient number, since it is larger than the sum of its proper divisors (1).

561190912391 is an equidigital number, since it uses as much as digits as its factorization.

561190912391 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 131220, while the sum is 47.

The spelling of 561190912391 in words is "five hundred sixty-one billion, one hundred ninety million, nine hundred twelve thousand, three hundred ninety-one".