27947467699 has 8 divisors (see below), whose sum is σ = 28511596080. Its totient is φ = 27388897536.

The previous prime is 27947467697. The next prime is 27947467703. The reversal of 27947467699 is 99676474972.

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

It is a cyclic number.

It is not a de Polignac number, because 27947467699 - 2¹ = 27947467697 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (27947467697) 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, 1379397 + ... + 1399510.

It is an arithmetic number, because the mean of its divisors is an integer number (3563949510).

Almost surely, 2^27947467699 is an apocalyptic number.

27947467699 is a deficient number, since it is larger than the sum of its proper divisors (564128381).

27947467699 is a wasteful number, since it uses less digits than its factorization.

27947467699 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2779109.

The product of its digits is 288054144, while the sum is 70.

The spelling of 27947467699 in words is "twenty-seven billion, nine hundred forty-seven million, four hundred sixty-seven thousand, six hundred ninety-nine".