239769428353687 has 2 divisors, whose sum is σ = 239769428353688. Its totient is φ = 239769428353686.

The previous prime is 239769428353673. The next prime is 239769428353691. The reversal of 239769428353687 is 786353824967932.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-239769428353687 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 239769428353687.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (239769428353627) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 119884714176843 + 119884714176844.

It is an arithmetic number, because the mean of its divisors is an integer number (119884714176844).

Almost surely, 2^{239769428353687} is an apocalyptic number.

239769428353687 is a deficient number, since it is larger than the sum of its proper divisors (1).

239769428353687 is an equidigital number, since it uses as much as digits as its factorization.

239769428353687 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 19752284160, while the sum is 82.

The spelling of 239769428353687 in words is "two hundred thirty-nine trillion, seven hundred sixty-nine billion, four hundred twenty-eight million, three hundred fifty-three thousand, six hundred eighty-seven".