27744197834 has 4 divisors (see below), whose sum is σ = 41616296754. Its totient is φ = 13872098916.

The previous prime is 27744197827. The next prime is 27744197837. The reversal of 27744197834 is 43879144772.

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

It can be written as a sum of positive squares in only one way, i.e., 22709585809 + 5034612025 = 150697^2 + 70955^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 27744197834.

It is not an unprimeable number, because it can be changed into a prime (27744197837) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6936049457 + ... + 6936049460.

Almost surely, 2^27744197834 is an apocalyptic number.

27744197834 is a deficient number, since it is larger than the sum of its proper divisors (13872098920).

27744197834 is a wasteful number, since it uses less digits than its factorization.

27744197834 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13872098919.

The product of its digits is 9483264, while the sum is 56.

The spelling of 27744197834 in words is "twenty-seven billion, seven hundred forty-four million, one hundred ninety-seven thousand, eight hundred thirty-four".