28320625160 has 16 divisors (see below), whose sum is σ = 63721406700. Its totient is φ = 11328250048.

The previous prime is 28320625139. The next prime is 28320625163. The reversal of 28320625160 is 6152602382.

It can be written as a sum of positive squares in 2 ways, for example, as 27669660964 + 650964196 = 166342^2 + 25514^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 28320625160.

It is not an unprimeable number, because it can be changed into a prime (28320625163) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 354007775 + ... + 354007854.

Almost surely, 2^28320625160 is an apocalyptic number.

28320625160 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

28320625160 is an abundant number, since it is smaller than the sum of its proper divisors (35400781540).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

28320625160 is a wasteful number, since it uses less digits than its factorization.

28320625160 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 708015640 (or 708015636 counting only the distinct ones).

The product of its (nonzero) digits is 34560, while the sum is 35.

The spelling of 28320625160 in words is "twenty-eight billion, three hundred twenty million, six hundred twenty-five thousand, one hundred sixty".