3318383821849 has 2 divisors, whose sum is σ = 3318383821850. Its totient is φ = 3318383821848.

The previous prime is 3318383821801. The next prime is 3318383821861. The reversal of 3318383821849 is 9481283838133.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 2935420876249 + 382962945600 = 1713307^2 + 618840^2 .

It is a cyclic number.

It is not a de Polignac number, because 3318383821849 - 2²⁵ = 3318350267417 is a prime.

It is a super-2 number, since 2×3318383821849² (a number of 26 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (1318383821849) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1659191910924 + 1659191910925.

It is an arithmetic number, because the mean of its divisors is an integer number (1659191910925).

Almost surely, 2^{3318383821849} is an apocalyptic number.

It is an amenable number.

3318383821849 is a deficient number, since it is larger than the sum of its proper divisors (1).

3318383821849 is an equidigital number, since it uses as much as digits as its factorization.

3318383821849 is an evil number, because the sum of its binary digits is even.

The product of its digits is 23887872, while the sum is 61.

The spelling of 3318383821849 in words is "three trillion, three hundred eighteen billion, three hundred eighty-three million, eight hundred twenty-one thousand, eight hundred forty-nine".