232534013400509 has 2 divisors, whose sum is σ = 232534013400510. Its totient is φ = 232534013400508.

The previous prime is 232534013400497. The next prime is 232534013400631. The reversal of 232534013400509 is 905004310435232.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 144810465173284 + 87723548227225 = 12033722^2 + 9366085^2 .

It is a cyclic number.

It is not a de Polignac number, because 232534013400509 - 2⁸ = 232534013400253 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (232534013400809) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 116267006700254 + 116267006700255.

It is an arithmetic number, because the mean of its divisors is an integer number (116267006700255).

Almost surely, 2^{232534013400509} is an apocalyptic number.

It is an amenable number.

232534013400509 is a deficient number, since it is larger than the sum of its proper divisors (1).

232534013400509 is an equidigital number, since it uses as much as digits as its factorization.

232534013400509 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 388800, while the sum is 41.

The spelling of 232534013400509 in words is "two hundred thirty-two trillion, five hundred thirty-four billion, thirteen million, four hundred thousand, five hundred nine".