28081833160 has 32 divisors (see below), whose sum is σ = 64725204600. Its totient is φ = 10958763520.

The previous prime is 28081833151. The next prime is 28081833179. The reversal of 28081833160 is 6133818082.

It can be written as a sum of positive squares in 4 ways, for example, as 24703666276 + 3378166884 = 157174^2 + 58122^2 .

It is a Harshad number since it is a multiple of its sum of digits (40).

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, 8559895 + ... + 8563174.

Almost surely, 2^28081833160 is an apocalyptic number.

28081833160 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

28081833160 is an abundant number, since it is smaller than the sum of its proper divisors (36643371440).

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

28081833160 is a wasteful number, since it uses less digits than its factorization.

28081833160 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17123121 (or 17123117 counting only the distinct ones).

The product of its (nonzero) digits is 55296, while the sum is 40.

The spelling of 28081833160 in words is "twenty-eight billion, eighty-one million, eight hundred thirty-three thousand, one hundred sixty".