626379568313 has 4 divisors (see below), whose sum is σ = 638198050788. Its totient is φ = 614561085840.

The previous prime is 626379568307. The next prime is 626379568387. The reversal of 626379568313 is 313865973626.

626379568313 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 313865973626 = 2 ⋅156932986813.

It can be written as a sum of positive squares in 2 ways, for example, as 283436982544 + 342942585769 = 532388^2 + 585613^2 .

It is a cyclic number.

It is not a de Polignac number, because 626379568313 - 2¹⁴ = 626379551929 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (626379568613) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5909241158 + ... + 5909241263.

It is an arithmetic number, because the mean of its divisors is an integer number (159549512697).

Almost surely, 2^626379568313 is an apocalyptic number.

It is an amenable number.

626379568313 is a deficient number, since it is larger than the sum of its proper divisors (11818482475).

626379568313 is a wasteful number, since it uses less digits than its factorization.

626379568313 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11818482474.

The product of its digits is 29393280, while the sum is 59.

The spelling of 626379568313 in words is "six hundred twenty-six billion, three hundred seventy-nine million, five hundred sixty-eight thousand, three hundred thirteen".