3541742118821 has 2 divisors, whose sum is σ = 3541742118822. Its totient is φ = 3541742118820.

The previous prime is 3541742118809. The next prime is 3541742118833. The reversal of 3541742118821 is 1288112471453.

3541742118821 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a balanced prime because it is at equal distance from previous prime (3541742118809) and next prime (3541742118833).

It can be written as a sum of positive squares in only one way, i.e., 2217433701025 + 1324308417796 = 1489105^2 + 1150786^2 .

It is an emirp because it is prime and its reverse (1288112471453) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-3541742118821 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (3541742114821) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1770871059410 + 1770871059411.

It is an arithmetic number, because the mean of its divisors is an integer number (1770871059411).

Almost surely, 2^{3541742118821} is an apocalyptic number.

It is an amenable number.

3541742118821 is a deficient number, since it is larger than the sum of its proper divisors (1).

3541742118821 is an equidigital number, since it uses as much as digits as its factorization.

3541742118821 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 430080, while the sum is 47.

The spelling of 3541742118821 in words is "three trillion, five hundred forty-one billion, seven hundred forty-two million, one hundred eighteen thousand, eight hundred twenty-one".