28758637260 has 36 divisors (see below), whose sum is σ = 87234533568. Its totient is φ = 7668969888.

The previous prime is 28758637247. The next prime is 28758637261. The reversal of 28758637260 is 6273685782.

28758637260 is a `hidden beast` number, since 2 + 8 + 7 + 586 + 37 + 26 + 0 = 666.

It is a tau number, because it is divible by the number of its divisors (36).

It is a junction number, because it is equal to n+sod(n) for n = 28758637197 and 28758637206.

It is not an unprimeable number, because it can be changed into a prime (28758637261) 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 11 ways as a sum of consecutive naturals, for example, 79884924 + ... + 79885283.

It is an arithmetic number, because the mean of its divisors is an integer number (2423181488).

Almost surely, 2^28758637260 is an apocalyptic number.

28758637260 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

28758637260 is an abundant number, since it is smaller than the sum of its proper divisors (58475896308).

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

28758637260 is a wasteful number, since it uses less digits than its factorization.

28758637260 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 159770222 (or 159770217 counting only the distinct ones).

The product of its (nonzero) digits is 6773760, while the sum is 54.

The spelling of 28758637260 in words is "twenty-eight billion, seven hundred fifty-eight million, six hundred thirty-seven thousand, two hundred sixty".