27242749201 has 4 divisors (see below), whose sum is σ = 27876301552. Its totient is φ = 26609196852.

The previous prime is 27242749189. The next prime is 27242749217. The reversal of 27242749201 is 10294724272.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 27242749201 - 2¹⁵ = 27242716433 is a prime.

It is a super-2 number, since 2×27242749201² (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 (27242749801) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 316776111 + ... + 316776196.

It is an arithmetic number, because the mean of its divisors is an integer number (6969075388).

Almost surely, 2^27242749201 is an apocalyptic number.

It is an amenable number.

27242749201 is a deficient number, since it is larger than the sum of its proper divisors (633552351).

27242749201 is an equidigital number, since it uses as much as digits as its factorization.

27242749201 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 633552350.

The product of its (nonzero) digits is 112896, while the sum is 40.

The spelling of 27242749201 in words is "twenty-seven billion, two hundred forty-two million, seven hundred forty-nine thousand, two hundred one".