8280009999 has 8 divisors (see below), whose sum is σ = 12266681520. Its totient is φ = 5520006648.

The previous prime is 8280009979. The next prime is 8280010001. The reversal of 8280009999 is 9999000828.

It is not a de Polignac number, because 8280009999 - 2⁵ = 8280009967 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8280009929) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 153333492 + ... + 153333545.

It is an arithmetic number, because the mean of its divisors is an integer number (1533335190).

Almost surely, 2^8280009999 is an apocalyptic number.

8280009999 is a deficient number, since it is larger than the sum of its proper divisors (3986671521).

8280009999 is a wasteful number, since it uses less digits than its factorization.

8280009999 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 306667046 (or 306667040 counting only the distinct ones).

The product of its (nonzero) digits is 839808, while the sum is 54.

The square root of 8280009999 is about 90994.5602714800. The cubic root of 8280009999 is about 2023.0670982560.

The spelling of 8280009999 in words is "eight billion, two hundred eighty million, nine thousand, nine hundred ninety-nine".