28102786614 has 24 divisors (see below), whose sum is σ = 69587852880. Its totient is φ = 8029367568.

The previous prime is 28102786597. The next prime is 28102786643. The reversal of 28102786614 is 41668720182.

28102786614 is a `hidden beast` number, since 2 + 8 + 1 + 0 + 27 + 8 + 6 + 614 = 666.

It is a self number, because there is not a number n which added to its sum of digits gives 28102786614.

It is a congruent number.

It is an unprimeable number.

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, 111518869 + ... + 111519120.

It is an arithmetic number, because the mean of its divisors is an integer number (2899493870).

Almost surely, 2^28102786614 is an apocalyptic number.

28102786614 is an abundant number, since it is smaller than the sum of its proper divisors (41485066266).

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

28102786614 is a wasteful number, since it uses less digits than its factorization.

28102786614 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 223038004 (or 223038001 counting only the distinct ones).

The product of its (nonzero) digits is 258048, while the sum is 45.

The spelling of 28102786614 in words is "twenty-eight billion, one hundred two million, seven hundred eighty-six thousand, six hundred fourteen".