318182861929 has 9 divisors (see below), whose sum is σ = 338010666501. Its totient is φ = 299457197760.

The previous prime is 318182861911. The next prime is 318182861989. The reversal of 318182861929 is 929168281813.

The square root of 318182861929 is 564077.

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

It can be written as a sum of positive squares in 4 ways, for example, as 16838955225 + 301343906704 = 129765^2 + 548948^2 .

It is not a de Polignac number, because 318182861929 - 2¹¹ = 318182859881 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (318182861989) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 9572719 + ... + 9605899.

Almost surely, 2^318182861929 is an apocalyptic number.

318182861929 is the 564077-th square number.

318182861929 is the 282039-th centered octagonal number.

It is an amenable number.

318182861929 is a deficient number, since it is larger than the sum of its proper divisors (19827804572).

318182861929 is an frugal number, since it uses more digits than its factorization.

318182861929 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 66396 (or 33198 counting only the distinct ones).

The product of its digits is 2985984, while the sum is 58.

The spelling of 318182861929 in words is "three hundred eighteen billion, one hundred eighty-two million, eight hundred sixty-one thousand, nine hundred twenty-nine".