28114540786 has 4 divisors (see below), whose sum is σ = 42171811182. Its totient is φ = 14057270392.

The previous prime is 28114540723. The next prime is 28114540807. The reversal of 28114540786 is 68704541182.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 24001755625 + 4112785161 = 154925^2 + 64131^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7028635195 + ... + 7028635198.

Almost surely, 2^28114540786 is an apocalyptic number.

28114540786 is a deficient number, since it is larger than the sum of its proper divisors (14057270396).

28114540786 is a wasteful number, since it uses less digits than its factorization.

28114540786 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14057270395.

The product of its (nonzero) digits is 430080, while the sum is 46.

The spelling of 28114540786 in words is "twenty-eight billion, one hundred fourteen million, five hundred forty thousand, seven hundred eighty-six".