318673548261 has 12 divisors (see below), whose sum is σ = 461052283692. Its totient is φ = 212104702656.

The previous prime is 318673548253. The next prime is 318673548283. The reversal of 318673548261 is 162845376813.

318673548261 is a `hidden beast` number, since 3 + 1 + 8 + 6 + 73 + 548 + 26 + 1 = 666.

318673548261 is digitally balanced in base 4, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 51261488100 + 267412060161 = 226410^2 + 517119^2 .

It is not a de Polignac number, because 318673548261 - 2³ = 318673548253 is a prime.

It is a super-2 number, since 2×318673548261² (a number of 24 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 318673548198 and 318673548207.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (318673548761) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 28688266 + ... + 28699371.

It is an arithmetic number, because the mean of its divisors is an integer number (38421023641).

Almost surely, 2^318673548261 is an apocalyptic number.

It is an amenable number.

318673548261 is a deficient number, since it is larger than the sum of its proper divisors (142378735431).

318673548261 is a wasteful number, since it uses less digits than its factorization.

318673548261 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 57388260 (or 57388257 counting only the distinct ones).

The product of its digits is 5806080, while the sum is 54.

The spelling of 318673548261 in words is "three hundred eighteen billion, six hundred seventy-three million, five hundred forty-eight thousand, two hundred sixty-one".