6735447981013 has 2 divisors, whose sum is σ = 6735447981014. Its totient is φ = 6735447981012.

The previous prime is 6735447980929. The next prime is 6735447981121. The reversal of 6735447981013 is 3101897445376.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 6047944992049 + 687502988964 = 2459257^2 + 829158^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-6735447981013 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (6735447961013) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3367723990506 + 3367723990507.

It is an arithmetic number, because the mean of its divisors is an integer number (3367723990507).

Almost surely, 2^{6735447981013} is an apocalyptic number.

It is an amenable number.

6735447981013 is a deficient number, since it is larger than the sum of its proper divisors (1).

6735447981013 is an equidigital number, since it uses as much as digits as its factorization.

6735447981013 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 15240960, while the sum is 58.

The spelling of 6735447981013 in words is "six trillion, seven hundred thirty-five billion, four hundred forty-seven million, nine hundred eighty-one thousand, thirteen".