306859408129 has 8 divisors (see below), whose sum is σ = 326020248360. Its totient is φ = 288270533376.

The previous prime is 306859408127. The next prime is 306859408139. The reversal of 306859408129 is 921804958603.

It can be written as a sum of positive squares in 4 ways, for example, as 181527123600 + 125332284529 = 426060^2 + 354023^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 306859408129 - 2¹ = 306859408127 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 306859408129.

It is not an unprimeable number, because it can be changed into a prime (306859408127) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 142990264 + ... + 142992409.

It is an arithmetic number, because the mean of its divisors is an integer number (40752531045).

Almost surely, 2^306859408129 is an apocalyptic number.

It is an amenable number.

306859408129 is a deficient number, since it is larger than the sum of its proper divisors (19160840231).

306859408129 is a wasteful number, since it uses less digits than its factorization.

306859408129 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 285982739.

The product of its (nonzero) digits is 3732480, while the sum is 55.

The spelling of 306859408129 in words is "three hundred six billion, eight hundred fifty-nine million, four hundred eight thousand, one hundred twenty-nine".