309676476031129 has 9 divisors (see below), whose sum is σ = 310572502998303. Its totient is φ = 308783026910712.

The previous prime is 309676476031063. The next prime is 309676476031177. The reversal of 309676476031129 is 921130674676903.

The square root of 309676476031129 is 17597627.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in only one way, i.e., 227300158731529 + 82376317299600 = 15076477^2 + 9076140^2 .

It is not a de Polignac number, because 309676476031129 - 2¹³ = 309676476022937 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (309676476071129) by changing a digit.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 6141546612 + ... + 6141597034.

Almost surely, 2^{309676476031129} is an apocalyptic number.

309676476031129 is the 17597627-th square number.

309676476031129 is the 8798814-th centered octagonal number.

It is an amenable number.

309676476031129 is a deficient number, since it is larger than the sum of its proper divisors (896026967174).

309676476031129 is an frugal number, since it uses more digits than its factorization.

309676476031129 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 101544 (or 50772 counting only the distinct ones).

The product of its (nonzero) digits is 61725888, while the sum is 64.

The spelling of 309676476031129 in words is "three hundred nine trillion, six hundred seventy-six billion, four hundred seventy-six million, thirty-one thousand, one hundred twenty-nine".