28113543768 has 32 divisors (see below), whose sum is σ = 70640642160. Its totient is φ = 9323610240.

The previous prime is 28113543761. The next prime is 28113543851. The reversal of 28113543768 is 86734531182.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28113543761) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2968363 + ... + 2977818.

Almost surely, 2^28113543768 is an apocalyptic number.

It is an amenable number.

28113543768 is an abundant number, since it is smaller than the sum of its proper divisors (42527098392).

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

28113543768 is a wasteful number, since it uses less digits than its factorization.

28113543768 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5946387 (or 5946383 counting only the distinct ones).

The product of its digits is 967680, while the sum is 48.

The spelling of 28113543768 in words is "twenty-eight billion, one hundred thirteen million, five hundred forty-three thousand, seven hundred sixty-eight".