313456656385 has 8 divisors (see below), whose sum is σ = 376157661480. Its totient is φ = 250758875904.

The previous prime is 313456656379. The next prime is 313456656389. The reversal of 313456656385 is 583656654313.

It is a happy number.

It is a Cunningham number, because it is equal to 559872²+1.

It can be written as a sum of positive squares in 4 ways, for example, as 112844933776 + 200611722609 = 335924^2 + 447897^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 313456656385 - 2²⁹ = 312919785473 is a prime.

It is a super-2 number, since 2×313456656385² (a number of 24 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (313456656389) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 586872 + ... + 985561.

It is an arithmetic number, because the mean of its divisors is an integer number (47019707685).

Almost surely, 2^313456656385 is an apocalyptic number.

It is an amenable number.

313456656385 is a deficient number, since it is larger than the sum of its proper divisors (62701005095).

313456656385 is a wasteful number, since it uses less digits than its factorization.

313456656385 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1612307.

The product of its digits is 23328000, while the sum is 55.

The spelling of 313456656385 in words is "three hundred thirteen billion, four hundred fifty-six million, six hundred fifty-six thousand, three hundred eighty-five".