3819125662861 has 2 divisors, whose sum is σ = 3819125662862. Its totient is φ = 3819125662860.

The previous prime is 3819125662831. The next prime is 3819125662871. The reversal of 3819125662861 is 1682665219183.

It is a happy number.

3819125662861 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 3659928652836 + 159197010025 = 1913094^2 + 398995^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-3819125662861 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 3819125662796 and 3819125662805.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (3819125662811) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1909562831430 + 1909562831431.

It is an arithmetic number, because the mean of its divisors is an integer number (1909562831431).

Almost surely, 2^{3819125662861} is an apocalyptic number.

It is an amenable number.

3819125662861 is a deficient number, since it is larger than the sum of its proper divisors (1).

3819125662861 is an equidigital number, since it uses as much as digits as its factorization.

3819125662861 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 7464960, while the sum is 58.

The spelling of 3819125662861 in words is "three trillion, eight hundred nineteen billion, one hundred twenty-five million, six hundred sixty-two thousand, eight hundred sixty-one".