80802805508 has 24 divisors (see below), whose sum is σ = 144585748440. Its totient is φ = 39498018560.

The previous prime is 80802805487. The next prime is 80802805529. The reversal of 80802805508 is 80550820808.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (80802805487) and next prime (80802805529).

It can be written as a sum of positive squares in 4 ways, for example, as 3581064964 + 77221740544 = 59842^2 + 277888^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 618623 + ... + 737766.

It is an arithmetic number, because the mean of its divisors is an integer number (6024406185).

Almost surely, 2^80802805508 is an apocalyptic number.

It is an amenable number.

80802805508 is a deficient number, since it is larger than the sum of its proper divisors (63782942932).

80802805508 is a wasteful number, since it uses less digits than its factorization.

80802805508 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1356727 (or 1356725 counting only the distinct ones).

The product of its (nonzero) digits is 204800, while the sum is 44.

The spelling of 80802805508 in words is "eighty billion, eight hundred two million, eight hundred five thousand, five hundred eight".