813109797007 has 2 divisors, whose sum is σ = 813109797008. Its totient is φ = 813109797006.

The previous prime is 813109796977. The next prime is 813109797041. The reversal of 813109797007 is 700797901318.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-813109797007 is a prime.

It is a super-2 number, since 2×813109797007² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (813109797047) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 406554898503 + 406554898504.

It is an arithmetic number, because the mean of its divisors is an integer number (406554898504).

Almost surely, 2^813109797007 is an apocalyptic number.

813109797007 is a deficient number, since it is larger than the sum of its proper divisors (1).

813109797007 is an equidigital number, since it uses as much as digits as its factorization.

813109797007 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 666792, while the sum is 52.

The spelling of 813109797007 in words is "eight hundred thirteen billion, one hundred nine million, seven hundred ninety-seven thousand, seven".