27776399390224 has 15 divisors (see below), whose sum is σ = 53816814663663. Its totient is φ = 13888189154448.

The previous prime is 27776399390197. The next prime is 27776399390269. The reversal of 27776399390224 is 42209399367772.

The square root of 27776399390224 is 5270332.

It is a perfect power (a square), and thus also a powerful number.

It is a Duffinian 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 in 2 ways as a sum of consecutive naturals, for example, 20422537 + ... + 21740119.

Almost surely, 2^{27776399390224} is an apocalyptic number.

27776399390224 is the 5270332-nd square number.

It is an amenable number.

27776399390224 is a deficient number, since it is larger than the sum of its proper divisors (26040415273439).

27776399390224 is an frugal number, since it uses more digits than its factorization.

27776399390224 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2635174 (or 1317585 counting only the distinct ones).

The product of its (nonzero) digits is 432081216, while the sum is 70.

The spelling of 27776399390224 in words is "twenty-seven trillion, seven hundred seventy-six billion, three hundred ninety-nine million, three hundred ninety thousand, two hundred twenty-four".