7280000008 has 16 divisors (see below), whose sum is σ = 13785150060. Its totient is φ = 3603960000.

The previous prime is 7279999963. The next prime is 7280000137. The reversal of 7280000008 is 8000000827.

It can be written as a sum of positive squares in 2 ways, for example, as 5849496324 + 1430503684 = 76482^2 + 37822^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4504143 + ... + 4505758.

Almost surely, 2^7280000008 is an apocalyptic number.

It is an amenable number.

7280000008 is a deficient number, since it is larger than the sum of its proper divisors (6505150052).

7280000008 is a wasteful number, since it uses less digits than its factorization.

7280000008 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9010008 (or 9010004 counting only the distinct ones).

The product of its (nonzero) digits is 896, while the sum is 25.

The square root of 7280000008 is about 85322.9160776869. The cubic root of 7280000008 is about 1938.1042173966.

The spelling of 7280000008 in words is "seven billion, two hundred eighty million, eight", and thus it is an aban number.