27774433774 has 32 divisors (see below), whose sum is σ = 45208497600. Its totient is φ = 12745820160.

The previous prime is 27774433751. The next prime is 27774433777. The reversal of 27774433774 is 47733447772.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (27774433777) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6143887 + ... + 6148405.

It is an arithmetic number, because the mean of its divisors is an integer number (1412765550).

Almost surely, 2^27774433774 is an apocalyptic number.

27774433774 is a deficient number, since it is larger than the sum of its proper divisors (17434063826).

27774433774 is a wasteful number, since it uses less digits than its factorization.

27774433774 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8988.

The product of its digits is 19361664, while the sum is 55.

The spelling of 27774433774 in words is "twenty-seven billion, seven hundred seventy-four million, four hundred thirty-three thousand, seven hundred seventy-four".