28089802760 has 16 divisors (see below), whose sum is σ = 63202056300. Its totient is φ = 11235921088.

The previous prime is 28089802757. The next prime is 28089802771. The reversal of 28089802760 is 6720898082.

It can be written as a sum of positive squares in 2 ways, for example, as 28015394884 + 74407876 = 167378^2 + 8626^2 .

It is a junction number, because it is equal to n+sod(n) for n = 28089802699 and 28089802708.

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, 351122495 + ... + 351122574.

Almost surely, 2^28089802760 is an apocalyptic number.

28089802760 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

28089802760 is an abundant number, since it is smaller than the sum of its proper divisors (35112253540).

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

28089802760 is a wasteful number, since it uses less digits than its factorization.

28089802760 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 702245080 (or 702245076 counting only the distinct ones).

The product of its (nonzero) digits is 774144, while the sum is 50.

The spelling of 28089802760 in words is "twenty-eight billion, eighty-nine million, eight hundred two thousand, seven hundred sixty".