309864349147 has 2 divisors, whose sum is σ = 309864349148. Its totient is φ = 309864349146.

The previous prime is 309864349133. The next prime is 309864349181. The reversal of 309864349147 is 741943468903.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 309864349147 - 2³¹ = 307716865499 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 309864349091 and 309864349100.

It is not a weakly prime, because it can be changed into another prime (309864341147) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 154932174573 + 154932174574.

It is an arithmetic number, because the mean of its divisors is an integer number (154932174574).

Almost surely, 2^309864349147 is an apocalyptic number.

309864349147 is a deficient number, since it is larger than the sum of its proper divisors (1).

309864349147 is an equidigital number, since it uses as much as digits as its factorization.

309864349147 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 15676416, while the sum is 58.

The spelling of 309864349147 in words is "three hundred nine billion, eight hundred sixty-four million, three hundred forty-nine thousand, one hundred forty-seven".