68274666313 has 24 divisors (see below), whose sum is σ = 80194725000. Its totient is φ = 57953806848.

The previous prime is 68274666293. The next prime is 68274666323. The reversal of 68274666313 is 31366647286.

It can be written as a sum of positive squares in 4 ways, for example, as 306005049 + 67968661264 = 17493^2 + 260708^2 .

It is not a de Polignac number, because 68274666313 - 2²¹ = 68272569161 is a prime.

It is a super-2 number, since 2×68274666313² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (68274666323) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 2446563 + ... + 2474311.

It is an arithmetic number, because the mean of its divisors is an integer number (3341446875).

Almost surely, 2^68274666313 is an apocalyptic number.

It is an amenable number.

68274666313 is a deficient number, since it is larger than the sum of its proper divisors (11920058687).

68274666313 is a wasteful number, since it uses less digits than its factorization.

68274666313 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28249 (or 28242 counting only the distinct ones).

The product of its digits is 5225472, while the sum is 52.

The spelling of 68274666313 in words is "sixty-eight billion, two hundred seventy-four million, six hundred sixty-six thousand, three hundred thirteen".