8151398657 has 2 divisors, whose sum is σ = 8151398658. Its totient is φ = 8151398656.

The previous prime is 8151398621. The next prime is 8151398659. The reversal of 8151398657 is 7568931518.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 5196823921 + 2954574736 = 72089^2 + 54356^2 .

It is a cyclic number.

It is not a de Polignac number, because 8151398657 - 2²⁸ = 7882963201 is a prime.

Together with 8151398659, it forms a pair of twin primes.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 8151398599 and 8151398608.

It is not a weakly prime, because it can be changed into another prime (8151398659) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4075699328 + 4075699329.

It is an arithmetic number, because the mean of its divisors is an integer number (4075699329).

Almost surely, 2^8151398657 is an apocalyptic number.

It is an amenable number.

8151398657 is a deficient number, since it is larger than the sum of its proper divisors (1).

8151398657 is an equidigital number, since it uses as much as digits as its factorization.

8151398657 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1814400, while the sum is 53.

The square root of 8151398657 is about 90285.0965386868. The cubic root of 8151398657 is about 2012.5377923898.

The spelling of 8151398657 in words is "eight billion, one hundred fifty-one million, three hundred ninety-eight thousand, six hundred fifty-seven".