28388125107853 has 12 divisors (see below), whose sum is σ = 33109142791680. Its totient is φ = 24269146849752.

The previous prime is 28388125107821. The next prime is 28388125107887. The reversal of 28388125107853 is 35870152188382.

It is a happy number.

It is not a de Polignac number, because 28388125107853 - 2⁵ = 28388125107821 is a prime.

It is a super-2 number, since 2×28388125107853² (a number of 28 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 28388125107791 and 28388125107800.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28388125107803) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 756312163 + ... + 756349696.

It is an arithmetic number, because the mean of its divisors is an integer number (2759095232640).

Almost surely, 2^{28388125107853} is an apocalyptic number.

It is an amenable number.

28388125107853 is a deficient number, since it is larger than the sum of its proper divisors (4721017683827).

28388125107853 is a wasteful number, since it uses less digits than its factorization.

28388125107853 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1512662256 (or 1512662249 counting only the distinct ones).

The product of its (nonzero) digits is 25804800, while the sum is 61.

The spelling of 28388125107853 in words is "twenty-eight trillion, three hundred eighty-eight billion, one hundred twenty-five million, one hundred seven thousand, eight hundred fifty-three".