27721364299 has 4 divisors (see below), whose sum is σ = 27734649264. Its totient is φ = 27708079336.

The previous prime is 27721364273. The next prime is 27721364309. The reversal of 27721364299 is 99246312772.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 27721364299 - 2¹⁷ = 27721233227 is a prime.

It is a super-2 number, since 2×27721364299² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (27721364269) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6639352 + ... + 6643525.

It is an arithmetic number, because the mean of its divisors is an integer number (6933662316).

Almost surely, 2^27721364299 is an apocalyptic number.

27721364299 is a deficient number, since it is larger than the sum of its proper divisors (13284965).

27721364299 is a wasteful number, since it uses less digits than its factorization.

27721364299 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13284964.

The product of its digits is 2286144, while the sum is 52.

The spelling of 27721364299 in words is "twenty-seven billion, seven hundred twenty-one million, three hundred sixty-four thousand, two hundred ninety-nine".