309114973439 has 2 divisors, whose sum is σ = 309114973440. Its totient is φ = 309114973438.

The previous prime is 309114973421. The next prime is 309114973537. The reversal of 309114973439 is 934379411903.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 309114973439 - 2²⁸ = 308846537983 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (309114973339) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 154557486719 + 154557486720.

It is an arithmetic number, because the mean of its divisors is an integer number (154557486720).

Almost surely, 2^309114973439 is an apocalyptic number.

309114973439 is a deficient number, since it is larger than the sum of its proper divisors (1).

309114973439 is an equidigital number, since it uses as much as digits as its factorization.

309114973439 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2204496, while the sum is 53.

The spelling of 309114973439 in words is "three hundred nine billion, one hundred fourteen million, nine hundred seventy-three thousand, four hundred thirty-nine".