28112314243 has 8 divisors (see below), whose sum is σ = 30276128736. Its totient is φ = 25948689600.

The previous prime is 28112314229. The next prime is 28112314301. The reversal of 28112314243 is 34241321182.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-28112314243 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (28112354243) 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, 465423 + ... + 522343.

It is an arithmetic number, because the mean of its divisors is an integer number (3784516092).

Almost surely, 2^28112314243 is an apocalyptic number.

28112314243 is a deficient number, since it is larger than the sum of its proper divisors (2163814493).

28112314243 is a wasteful number, since it uses less digits than its factorization.

28112314243 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 94925.

The product of its digits is 9216, while the sum is 31.

The spelling of 28112314243 in words is "twenty-eight billion, one hundred twelve million, three hundred fourteen thousand, two hundred forty-three".