4138725677 has 2 divisors, whose sum is σ = 4138725678. Its totient is φ = 4138725676.

The previous prime is 4138725659. The next prime is 4138725719. The reversal of 4138725677 is 7765278314.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 2200172836 + 1938552841 = 46906^2 + 44029^2 .

It is a cyclic number.

It is not a de Polignac number, because 4138725677 - 2²⁴ = 4121948461 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (4138721677) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2069362838 + 2069362839.

It is an arithmetic number, because the mean of its divisors is an integer number (2069362839).

Almost surely, 2^4138725677 is an apocalyptic number.

It is an amenable number.

4138725677 is a deficient number, since it is larger than the sum of its proper divisors (1).

4138725677 is an equidigital number, since it uses as much as digits as its factorization.

4138725677 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1975680, while the sum is 50.

The square root of 4138725677 is about 64332.9284037343. The cubic root of 4138725677 is about 1605.5440069966.

The spelling of 4138725677 in words is "four billion, one hundred thirty-eight million, seven hundred twenty-five thousand, six hundred seventy-seven".