239986720907 has 2 divisors, whose sum is σ = 239986720908. Its totient is φ = 239986720906.

The previous prime is 239986720903. The next prime is 239986720913. The reversal of 239986720907 is 709027689932.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 239986720907 - 2² = 239986720903 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 239986720907.

It is not a weakly prime, because it can be changed into another prime (239986720903) 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, 119993360453 + 119993360454.

It is an arithmetic number, because the mean of its divisors is an integer number (119993360454).

Almost surely, 2^239986720907 is an apocalyptic number.

239986720907 is a deficient number, since it is larger than the sum of its proper divisors (1).

239986720907 is an equidigital number, since it uses as much as digits as its factorization.

239986720907 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 20575296, while the sum is 62.

The spelling of 239986720907 in words is "two hundred thirty-nine billion, nine hundred eighty-six million, seven hundred twenty thousand, nine hundred seven".