8012499999 has 24 divisors (see below), whose sum is σ = 12413082240. Its totient is φ = 4503468960.

The previous prime is 8012499997. The next prime is 8012500003. The reversal of 8012499999 is 9999942108.

It is a happy number.

It is not a de Polignac number, because 8012499999 - 2¹ = 8012499997 is a prime.

8012499999 is a modest number, since divided by 99999 gives 80124 as remainder.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8012499991) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 26872 + ... + 129410.

It is an arithmetic number, because the mean of its divisors is an integer number (517211760).

Almost surely, 2^8012499999 is an apocalyptic number.

8012499999 is a deficient number, since it is larger than the sum of its proper divisors (4400582241).

8012499999 is a wasteful number, since it uses less digits than its factorization.

8012499999 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 102671 (or 102610 counting only the distinct ones).

The product of its (nonzero) digits is 3779136, while the sum is 60.

The square root of 8012499999 is about 89512.5689442550. The cubic root of 8012499999 is about 2001.0411245192.

The spelling of 8012499999 in words is "eight billion, twelve million, four hundred ninety-nine thousand, nine hundred ninety-nine".