28114527687 has 16 divisors (see below), whose sum is σ = 39127131648. Its totient is φ = 17922940640.

The previous prime is 28114527647. The next prime is 28114527689. The reversal of 28114527687 is 78672541182.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 28114527687 - 2¹⁰ = 28114526663 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28114527689) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 190198 + ... + 303980.

It is an arithmetic number, because the mean of its divisors is an integer number (2445445728).

Almost surely, 2^28114527687 is an apocalyptic number.

28114527687 is a deficient number, since it is larger than the sum of its proper divisors (11012603961).

28114527687 is a wasteful number, since it uses less digits than its factorization.

28114527687 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 117390.

The product of its digits is 1505280, while the sum is 51.

The spelling of 28114527687 in words is "twenty-eight billion, one hundred fourteen million, five hundred twenty-seven thousand, six hundred eighty-seven".