309086668811 has 2 divisors, whose sum is σ = 309086668812. Its totient is φ = 309086668810.

The previous prime is 309086668763. The next prime is 309086668871. The reversal of 309086668811 is 118866680903.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 309086668811 - 2³⁰ = 308012926987 is a prime.

It is not a weakly prime, because it can be changed into another prime (309086668871) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 154543334405 + 154543334406.

It is an arithmetic number, because the mean of its divisors is an integer number (154543334406).

Almost surely, 2^309086668811 is an apocalyptic number.

309086668811 is a deficient number, since it is larger than the sum of its proper divisors (1).

309086668811 is an equidigital number, since it uses as much as digits as its factorization.

309086668811 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2985984, while the sum is 56.

The spelling of 309086668811 in words is "three hundred nine billion, eighty-six million, six hundred sixty-eight thousand, eight hundred eleven".