28114715968 has 56 divisors (see below), whose sum is σ = 56242028232. Its totient is φ = 13943814144.

The previous prime is 28114715903. The next prime is 28114715969. The reversal of 28114715968 is 86951741182.

It can be written as a sum of positive squares in 4 ways, for example, as 13495004224 + 14619711744 = 116168^2 + 120912^2 .

It is a super-2 number, since 2×28114715968² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28114715969) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6800430 + ... + 6804562.

Almost surely, 2^28114715968 is an apocalyptic number.

It is an amenable number.

28114715968 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

28114715968 is a wasteful number, since it uses less digits than its factorization.

28114715968 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4979 (or 4969 counting only the distinct ones).

The product of its digits is 967680, while the sum is 52.

The spelling of 28114715968 in words is "twenty-eight billion, one hundred fourteen million, seven hundred fifteen thousand, nine hundred sixty-eight".