27297224899 has 4 divisors (see below), whose sum is σ = 31196828464. Its totient is φ = 23397621336.

The previous prime is 27297224879. The next prime is 27297224917. The reversal of 27297224899 is 99842279272.

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 27297224899 - 2⁷ = 27297224771 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (27297224839) 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, 1949801772 + ... + 1949801785.

It is an arithmetic number, because the mean of its divisors is an integer number (7799207116).

Almost surely, 2^27297224899 is an apocalyptic number.

27297224899 is a deficient number, since it is larger than the sum of its proper divisors (3899603565).

27297224899 is an equidigital number, since it uses as much as digits as its factorization.

27297224899 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3899603564.

The product of its digits is 18289152, while the sum is 61.

The spelling of 27297224899 in words is "twenty-seven billion, two hundred ninety-seven million, two hundred twenty-four thousand, eight hundred ninety-nine".