27968599243 has 8 divisors (see below), whose sum is σ = 30544256736. Its totient is φ = 25453545600.

The previous prime is 27968599229. The next prime is 27968599261. The reversal of 27968599243 is 34299586972.

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-27968599243 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (27968591243) 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, 15149998 + ... + 15151843.

It is an arithmetic number, because the mean of its divisors is an integer number (3818032092).

Almost surely, 2^27968599243 is an apocalyptic number.

27968599243 is a deficient number, since it is larger than the sum of its proper divisors (2575657493).

27968599243 is a wasteful number, since it uses less digits than its factorization.

27968599243 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30301925.

The product of its digits is 58786560, while the sum is 64.

The spelling of 27968599243 in words is "twenty-seven billion, nine hundred sixty-eight million, five hundred ninety-nine thousand, two hundred forty-three".