3781569412541 has 2 divisors, whose sum is σ = 3781569412542. Its totient is φ = 3781569412540.

The previous prime is 3781569412483. The next prime is 3781569412549. The reversal of 3781569412541 is 1452149651873.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 3660127617316 + 121441795225 = 1913146^2 + 348485^2 .

It is an emirp because it is prime and its reverse (1452149651873) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-3781569412541 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (3781569412549) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1890784706270 + 1890784706271.

It is an arithmetic number, because the mean of its divisors is an integer number (1890784706271).

Almost surely, 2^{3781569412541} is an apocalyptic number.

It is an amenable number.

3781569412541 is a deficient number, since it is larger than the sum of its proper divisors (1).

3781569412541 is an equidigital number, since it uses as much as digits as its factorization.

3781569412541 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 7257600, while the sum is 56.

The spelling of 3781569412541 in words is "three trillion, seven hundred eighty-one billion, five hundred sixty-nine million, four hundred twelve thousand, five hundred forty-one".