27168053977 has 2 divisors, whose sum is σ = 27168053978. Its totient is φ = 27168053976.

The previous prime is 27168053959. The next prime is 27168053989. The reversal of 27168053977 is 77935086172.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 17713214281 + 9454839696 = 133091^2 + 97236^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-27168053977 is a prime.

It is not a weakly prime, because it can be changed into another prime (27168053777) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13584026988 + 13584026989.

It is an arithmetic number, because the mean of its divisors is an integer number (13584026989).

Almost surely, 2^27168053977 is an apocalyptic number.

It is an amenable number.

27168053977 is a deficient number, since it is larger than the sum of its proper divisors (1).

27168053977 is an equidigital number, since it uses as much as digits as its factorization.

27168053977 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 4445280, while the sum is 55.

The spelling of 27168053977 in words is "twenty-seven billion, one hundred sixty-eight million, fifty-three thousand, nine hundred seventy-seven".