28277888360 has 32 divisors (see below), whose sum is σ = 63643933440. Its totient is φ = 11307833664.

The previous prime is 28277888351. The next prime is 28277888363. The reversal of 28277888360 is 6388877282.

It is a self number, because there is not a number n which added to its sum of digits gives 28277888360.

It is not an unprimeable number, because it can be changed into a prime (28277888363) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 36449 + ... + 240591.

It is an arithmetic number, because the mean of its divisors is an integer number (1988872920).

Almost surely, 2^28277888360 is an apocalyptic number.

28277888360 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

28277888360 is an abundant number, since it is smaller than the sum of its proper divisors (35366045080).

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

28277888360 is a wasteful number, since it uses less digits than its factorization.

28277888360 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 207617 (or 207613 counting only the distinct ones).

The product of its (nonzero) digits is 14450688, while the sum is 59.

The spelling of 28277888360 in words is "twenty-eight billion, two hundred seventy-seven million, eight hundred eighty-eight thousand, three hundred sixty".