561190912427 has 2 divisors, whose sum is σ = 561190912428. Its totient is φ = 561190912426.

The previous prime is 561190912391. The next prime is 561190912433. The reversal of 561190912427 is 724219091165.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 561190912427 - 2¹² = 561190908331 is a prime.

It is not a weakly prime, because it can be changed into another prime (561190912027) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 280595456213 + 280595456214.

It is an arithmetic number, because the mean of its divisors is an integer number (280595456214).

Almost surely, 2^561190912427 is an apocalyptic number.

561190912427 is a deficient number, since it is larger than the sum of its proper divisors (1).

561190912427 is an equidigital number, since it uses as much as digits as its factorization.

561190912427 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 272160, while the sum is 47.

The spelling of 561190912427 in words is "five hundred sixty-one billion, one hundred ninety million, nine hundred twelve thousand, four hundred twenty-seven".