7813375907 has 2 divisors, whose sum is σ = 7813375908. Its totient is φ = 7813375906.

The previous prime is 7813375903. The next prime is 7813375981. The reversal of 7813375907 is 7095733187.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 7813375907 - 2² = 7813375903 is a prime.

It is a super-2 number, since 2×7813375907² (a number of 21 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (7813375901) 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 as a sum of consecutive naturals, namely, 3906687953 + 3906687954.

It is an arithmetic number, because the mean of its divisors is an integer number (3906687954).

Almost surely, 2^7813375907 is an apocalyptic number.

7813375907 is a deficient number, since it is larger than the sum of its proper divisors (1).

7813375907 is an equidigital number, since it uses as much as digits as its factorization.

7813375907 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1111320, while the sum is 50.

The square root of 7813375907 is about 88393.3023876809. The cubic root of 7813375907 is about 1984.3254676927.

The spelling of 7813375907 in words is "seven billion, eight hundred thirteen million, three hundred seventy-five thousand, nine hundred seven".