28753600860 has 48 divisors (see below), whose sum is σ = 89455648800. Its totient is φ = 7667626752.

The previous prime is 28753600789. The next prime is 28753600861. The reversal of 28753600860 is 6800635782.

28753600860 is a `hidden beast` number, since 287 + 5 + 360 + 0 + 8 + 6 + 0 = 666.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28753600861) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 26623165 + ... + 26624244.

It is an arithmetic number, because the mean of its divisors is an integer number (1863659350).

Almost surely, 2^28753600860 is an apocalyptic number.

28753600860 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

28753600860 is an abundant number, since it is smaller than the sum of its proper divisors (60702047940).

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

28753600860 is a wasteful number, since it uses less digits than its factorization.

28753600860 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 53247427 (or 53247419 counting only the distinct ones).

The product of its (nonzero) digits is 483840, while the sum is 45.

The spelling of 28753600860 in words is "twenty-eight billion, seven hundred fifty-three million, six hundred thousand, eight hundred sixty".