27251327377 has 2 divisors, whose sum is σ = 27251327378. Its totient is φ = 27251327376.

The previous prime is 27251327351. The next prime is 27251327381. The reversal of 27251327377 is 77372315272.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 26980033536 + 271293841 = 164256^2 + 16471^2 .

It is a cyclic number.

It is not a de Polignac number, because 27251327377 - 2⁷ = 27251327249 is a prime.

It is not a weakly prime, because it can be changed into another prime (27251327317) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13625663688 + 13625663689.

It is an arithmetic number, because the mean of its divisors is an integer number (13625663689).

Almost surely, 2^27251327377 is an apocalyptic number.

It is an amenable number.

27251327377 is a deficient number, since it is larger than the sum of its proper divisors (1).

27251327377 is an equidigital number, since it uses as much as digits as its factorization.

27251327377 is an evil number, because the sum of its binary digits is even.

The product of its digits is 864360, while the sum is 46.

The spelling of 27251327377 in words is "twenty-seven billion, two hundred fifty-one million, three hundred twenty-seven thousand, three hundred seventy-seven".