27402221191 has 8 divisors (see below), whose sum is σ = 28563519600. Its totient is φ = 26255349120.

The previous prime is 27402221153. The next prime is 27402221227. The reversal of 27402221191 is 19112220472.

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-27402221191 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (27402227191) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3602706 + ... + 3610303.

It is an arithmetic number, because the mean of its divisors is an integer number (3570439950).

Almost surely, 2^27402221191 is an apocalyptic number.

27402221191 is a deficient number, since it is larger than the sum of its proper divisors (1161298409).

27402221191 is a wasteful number, since it uses less digits than its factorization.

27402221191 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7213169.

The product of its (nonzero) digits is 4032, while the sum is 31.

The spelling of 27402221191 in words is "twenty-seven billion, four hundred two million, two hundred twenty-one thousand, one hundred ninety-one".