8130807917 has 2 divisors, whose sum is σ = 8130807918. Its totient is φ = 8130807916.

The previous prime is 8130807871. The next prime is 8130807953. The reversal of 8130807917 is 7197080318.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 7283939716 + 846868201 = 85346^2 + 29101^2 .

It is a cyclic number.

It is not a de Polignac number, because 8130807917 - 2⁸ = 8130807661 is a prime.

It is a super-2 number, since 2×8130807917² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (8130807967) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4065403958 + 4065403959.

It is an arithmetic number, because the mean of its divisors is an integer number (4065403959).

Almost surely, 2^8130807917 is an apocalyptic number.

It is an amenable number.

8130807917 is a deficient number, since it is larger than the sum of its proper divisors (1).

8130807917 is an equidigital number, since it uses as much as digits as its factorization.

8130807917 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 84672, while the sum is 44.

The square root of 8130807917 is about 90170.9926583932. The cubic root of 8130807917 is about 2010.8417814386.

The spelling of 8130807917 in words is "eight billion, one hundred thirty million, eight hundred seven thousand, nine hundred seventeen".