27800000528 has 20 divisors (see below), whose sum is σ = 53867377788. Its totient is φ = 13898741760.

The previous prime is 27800000497. The next prime is 27800000597. The reversal of 27800000528 is 82500000872.

It can be written as a sum of positive squares in 2 ways, for example, as 26260850704 + 1539149824 = 162052^2 + 39232^2 .

It is a junction number, because it is equal to n+sod(n) for n = 27800000494 and 27800000503.

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, 118568 + ... + 263928.

Almost surely, 2^27800000528 is an apocalyptic number.

It is an amenable number.

27800000528 is a deficient number, since it is larger than the sum of its proper divisors (26067377260).

27800000528 is a wasteful number, since it uses less digits than its factorization.

27800000528 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 157322 (or 157316 counting only the distinct ones).

The product of its (nonzero) digits is 8960, while the sum is 32.

The spelling of 27800000528 in words is "twenty-seven billion, eight hundred million, five hundred twenty-eight", and thus it is an aban number.