313600764781 has 4 divisors (see below), whose sum is σ = 321249563964. Its totient is φ = 305951965600.

The previous prime is 313600764727. The next prime is 313600764887. The reversal of 313600764781 is 187467006313.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 14292202500 + 299308562281 = 119550^2 + 547091^2 .

It is a cyclic number.

It is not a de Polignac number, because 313600764781 - 2¹⁹ = 313600240493 is a prime.

It is a super-2 number, since 2×313600764781² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (313601764781) 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 3 ways as a sum of consecutive naturals, for example, 3824399530 + ... + 3824399611.

It is an arithmetic number, because the mean of its divisors is an integer number (80312390991).

Almost surely, 2^313600764781 is an apocalyptic number.

It is an amenable number.

313600764781 is a deficient number, since it is larger than the sum of its proper divisors (7648799183).

313600764781 is an equidigital number, since it uses as much as digits as its factorization.

313600764781 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7648799182.

The product of its (nonzero) digits is 508032, while the sum is 46.

The spelling of 313600764781 in words is "three hundred thirteen billion, six hundred million, seven hundred sixty-four thousand, seven hundred eighty-one".