27777674738 has 16 divisors (see below), whose sum is σ = 45568885824. Its totient is φ = 12594407760.

The previous prime is 27777674723. The next prime is 27777674741. The reversal of 27777674738 is 83747677772.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 1581470 + ... + 1598937.

It is an arithmetic number, because the mean of its divisors is an integer number (2848055364).

Almost surely, 2^27777674738 is an apocalyptic number.

27777674738 is a deficient number, since it is larger than the sum of its proper divisors (17791211086).

27777674738 is a wasteful number, since it uses less digits than its factorization.

27777674738 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3180817.

The product of its digits is 135531648, while the sum is 65.

The spelling of 27777674738 in words is "twenty-seven billion, seven hundred seventy-seven million, six hundred seventy-four thousand, seven hundred thirty-eight".