8138027377 has 2 divisors, whose sum is σ = 8138027378. Its totient is φ = 8138027376.

The previous prime is 8138027369. The next prime is 8138027383. The reversal of 8138027377 is 7737208318.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 7363184481 + 774842896 = 85809^2 + 27836^2 .

It is a cyclic number.

It is not a de Polignac number, because 8138027377 - 2³ = 8138027369 is a prime.

It is not a weakly prime, because it can be changed into another prime (8138097377) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4069013688 + 4069013689.

It is an arithmetic number, because the mean of its divisors is an integer number (4069013689).

Almost surely, 2^8138027377 is an apocalyptic number.

It is an amenable number.

8138027377 is a deficient number, since it is larger than the sum of its proper divisors (1).

8138027377 is an equidigital number, since it uses as much as digits as its factorization.

8138027377 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 395136, while the sum is 46.

The square root of 8138027377 is about 90211.0158295538. The cubic root of 8138027377 is about 2011.4367570507.

The spelling of 8138027377 in words is "eight billion, one hundred thirty-eight million, twenty-seven thousand, three hundred seventy-seven".