23509667512339 has 2 divisors, whose sum is σ = 23509667512340. Its totient is φ = 23509667512338.

The previous prime is 23509667512301. The next prime is 23509667512381. The reversal of 23509667512339 is 93321576690532.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 23509667512339 - 2¹⁷ = 23509667381267 is a prime.

It is not a weakly prime, because it can be changed into another prime (23509667512939) 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, 11754833756169 + 11754833756170.

It is an arithmetic number, because the mean of its divisors is an integer number (11754833756170).

Almost surely, 2^{23509667512339} is an apocalyptic number.

23509667512339 is a deficient number, since it is larger than the sum of its proper divisors (1).

23509667512339 is an equidigital number, since it uses as much as digits as its factorization.

23509667512339 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 55112400, while the sum is 61.

The spelling of 23509667512339 in words is "twenty-three trillion, five hundred nine billion, six hundred sixty-seven million, five hundred twelve thousand, three hundred thirty-nine".