309449327611 has 2 divisors, whose sum is σ = 309449327612. Its totient is φ = 309449327610.

The previous prime is 309449327569. The next prime is 309449327641. The reversal of 309449327611 is 116723944903.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-309449327611 is a prime.

It is not a weakly prime, because it can be changed into another prime (309449327641) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 154724663805 + 154724663806.

It is an arithmetic number, because the mean of its divisors is an integer number (154724663806).

Almost surely, 2^309449327611 is an apocalyptic number.

309449327611 is a deficient number, since it is larger than the sum of its proper divisors (1).

309449327611 is an equidigital number, since it uses as much as digits as its factorization.

309449327611 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 979776, while the sum is 49.

The spelling of 309449327611 in words is "three hundred nine billion, four hundred forty-nine million, three hundred twenty-seven thousand, six hundred eleven".