3283720511849 has 2 divisors, whose sum is σ = 3283720511850. Its totient is φ = 3283720511848.

The previous prime is 3283720511801. The next prime is 3283720511867. The reversal of 3283720511849 is 9481150273823.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 2439953341225 + 843767170624 = 1562035^2 + 918568^2 .

It is an emirp because it is prime and its reverse (9481150273823) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 3283720511849 - 2³² = 3279425544553 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 3283720511849.

It is not a weakly prime, because it can be changed into another prime (3283720511549) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1641860255924 + 1641860255925.

It is an arithmetic number, because the mean of its divisors is an integer number (1641860255925).

Almost surely, 2^{3283720511849} is an apocalyptic number.

It is an amenable number.

3283720511849 is a deficient number, since it is larger than the sum of its proper divisors (1).

3283720511849 is an equidigital number, since it uses as much as digits as its factorization.

3283720511849 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2903040, while the sum is 53.

The spelling of 3283720511849 in words is "three trillion, two hundred eighty-three billion, seven hundred twenty million, five hundred eleven thousand, eight hundred forty-nine".