27079940771 has 4 divisors (see below), whose sum is σ = 29163013152. Its totient is φ = 24996868392.

The previous prime is 27079940753. The next prime is 27079940809. The reversal of 27079940771 is 17704997072.

It is a happy number.

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 27079940771 - 2¹⁸ = 27079678627 is a prime.

It is not an unprimeable number, because it can be changed into a prime (27079940731) 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 3 ways as a sum of consecutive naturals, for example, 1041536171 + ... + 1041536196.

It is an arithmetic number, because the mean of its divisors is an integer number (7290753288).

Almost surely, 2^27079940771 is an apocalyptic number.

27079940771 is a deficient number, since it is larger than the sum of its proper divisors (2083072381).

27079940771 is a wasteful number, since it uses less digits than its factorization.

27079940771 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2083072380.

The product of its (nonzero) digits is 1555848, while the sum is 53.

The spelling of 27079940771 in words is "twenty-seven billion, seventy-nine million, nine hundred forty thousand, seven hundred seventy-one".