8280008129 has 4 divisors (see below), whose sum is σ = 8329589184. Its totient is φ = 8230427076.

The previous prime is 8280008089. The next prime is 8280008131. The reversal of 8280008129 is 9218000828.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-8280008129 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 8280008092 and 8280008101.

It is not an unprimeable number, because it can be changed into a prime (8280008159) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 24790277 + ... + 24790610.

It is an arithmetic number, because the mean of its divisors is an integer number (2082397296).

Almost surely, 2^8280008129 is an apocalyptic number.

It is an amenable number.

8280008129 is a deficient number, since it is larger than the sum of its proper divisors (49581055).

8280008129 is a wasteful number, since it uses less digits than its factorization.

8280008129 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 49581054.

The product of its (nonzero) digits is 18432, while the sum is 38.

The square root of 8280008129 is about 90994.5499961399. The cubic root of 8280008129 is about 2023.0669459561.

The spelling of 8280008129 in words is "eight billion, two hundred eighty million, eight thousand, one hundred twenty-nine".