230581992569 has 2 divisors, whose sum is σ = 230581992570. Its totient is φ = 230581992568.

The previous prime is 230581992547. The next prime is 230581992587. The reversal of 230581992569 is 965299185032.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 156826296169 + 73755696400 = 396013^2 + 271580^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-230581992569 is a prime.

It is a super-2 number, since 2×230581992569² (a number of 24 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (230581092569) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 115290996284 + 115290996285.

It is an arithmetic number, because the mean of its divisors is an integer number (115290996285).

Almost surely, 2^230581992569 is an apocalyptic number.

It is an amenable number.

230581992569 is a deficient number, since it is larger than the sum of its proper divisors (1).

230581992569 is an equidigital number, since it uses as much as digits as its factorization.

230581992569 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 10497600, while the sum is 59.

The spelling of 230581992569 in words is "two hundred thirty billion, five hundred eighty-one million, nine hundred ninety-two thousand, five hundred sixty-nine".