313271925849 has 9 divisors (see below), whose sum is σ = 452506318303. Its totient is φ = 208846831152.

The previous prime is 313271925847. The next prime is 313271925853. The reversal of 313271925849 is 948529172313.

The square root of 313271925849 is 559707.

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

313271925849 is a `hidden beast` number, since 31 + 3 + 27 + 1 + 9 + 2 + 584 + 9 = 666.

It can be written as a sum of positive squares in only one way, i.e., 160234485849 + 153037440000 = 400293^2 + 391200^2 .

It is a tau number, because it is divible by the number of its divisors (9).

It is not a de Polignac number, because 313271925849 - 2¹ = 313271925847 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 313271925795 and 313271925804.

It is not an unprimeable number, because it can be changed into a prime (313271925847) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 1585837 + ... + 1772405.

Almost surely, 2^313271925849 is an apocalyptic number.

313271925849 is the 559707-th square number.

313271925849 is the 279854-th centered octagonal number.

It is an amenable number.

313271925849 is a deficient number, since it is larger than the sum of its proper divisors (139234392454).

313271925849 is an frugal number, since it uses more digits than its factorization.

313271925849 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 373144 (or 186572 counting only the distinct ones).

The product of its digits is 3265920, while the sum is 54.

The spelling of 313271925849 in words is "three hundred thirteen billion, two hundred seventy-one million, nine hundred twenty-five thousand, eight hundred forty-nine".