8099279129 has 2 divisors, whose sum is σ = 8099279130. Its totient is φ = 8099279128.

The previous prime is 8099279107. The next prime is 8099279143. The reversal of 8099279129 is 9219729908.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 5569189129 + 2530090000 = 74627^2 + 50300^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-8099279129 is a prime.

It is not a weakly prime, because it can be changed into another prime (8099279329) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4049639564 + 4049639565.

It is an arithmetic number, because the mean of its divisors is an integer number (4049639565).

Almost surely, 2^8099279129 is an apocalyptic number.

It is an amenable number.

8099279129 is a deficient number, since it is larger than the sum of its proper divisors (1).

8099279129 is an equidigital number, since it uses as much as digits as its factorization.

8099279129 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1469664, while the sum is 56.

The square root of 8099279129 is about 89995.9950720031. The cubic root of 8099279129 is about 2008.2392713432.

The spelling of 8099279129 in words is "eight billion, ninety-nine million, two hundred seventy-nine thousand, one hundred twenty-nine".