309940162559 has 2 divisors, whose sum is σ = 309940162560. Its totient is φ = 309940162558.

The previous prime is 309940162547. The next prime is 309940162579. The reversal of 309940162559 is 955261049903.

It is a weak prime.

It is an emirp because it is prime and its reverse (955261049903) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-309940162559 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 309940162559.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (309940162579) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 154970081279 + 154970081280.

It is an arithmetic number, because the mean of its divisors is an integer number (154970081280).

Almost surely, 2^309940162559 is an apocalyptic number.

309940162559 is a deficient number, since it is larger than the sum of its proper divisors (1).

309940162559 is an equidigital number, since it uses as much as digits as its factorization.

309940162559 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2624400, while the sum is 53.

The spelling of 309940162559 in words is "three hundred nine billion, nine hundred forty million, one hundred sixty-two thousand, five hundred fifty-nine".