27768351874 has 4 divisors (see below), whose sum is σ = 41652527814. Its totient is φ = 13884175936.

The previous prime is 27768351839. The next prime is 27768351883. The reversal of 27768351874 is 47815386772.

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., 27491961249 + 276390625 = 165807^2 + 16625^2 .

It is a Smith number, since the sum of its digits (58) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is an unprimeable number.

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 as a sum of consecutive naturals, namely, 6942087967 + ... + 6942087970.

Almost surely, 2^27768351874 is an apocalyptic number.

27768351874 is a deficient number, since it is larger than the sum of its proper divisors (13884175940).

27768351874 is a wasteful number, since it uses less digits than its factorization.

27768351874 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13884175939.

The product of its digits is 15805440, while the sum is 58.

The spelling of 27768351874 in words is "twenty-seven billion, seven hundred sixty-eight million, three hundred fifty-one thousand, eight hundred seventy-four".