27777675412 has 6 divisors (see below), whose sum is σ = 48610931978. Its totient is φ = 13888837704.

The previous prime is 27777675397. The next prime is 27777675451. The reversal of 27777675412 is 21457677772.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 14817219076 + 12960456336 = 121726^2 + 113844^2 .

It is a congruent 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, 3472209423 + ... + 3472209430.

Almost surely, 2^27777675412 is an apocalyptic number.

It is an amenable number.

27777675412 is a deficient number, since it is larger than the sum of its proper divisors (20833256566).

27777675412 is a wasteful number, since it uses less digits than its factorization.

27777675412 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6944418857 (or 6944418855 counting only the distinct ones).

The product of its digits is 8067360, while the sum is 55.

The spelling of 27777675412 in words is "twenty-seven billion, seven hundred seventy-seven million, six hundred seventy-five thousand, four hundred twelve".