4394938732913 has 2 divisors, whose sum is σ = 4394938732914. Its totient is φ = 4394938732912.

The previous prime is 4394938732883. The next prime is 4394938732963. The reversal of 4394938732913 is 3192378394934.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 3666949245184 + 727989487729 = 1914928^2 + 853223^2 .

It is a cyclic number.

It is not a de Polignac number, because 4394938732913 - 2¹⁰ = 4394938731889 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 4394938732913.

It is not a weakly prime, because it can be changed into another prime (4394938732963) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2197469366456 + 2197469366457.

It is an arithmetic number, because the mean of its divisors is an integer number (2197469366457).

Almost surely, 2^{4394938732913} is an apocalyptic number.

It is an amenable number.

4394938732913 is a deficient number, since it is larger than the sum of its proper divisors (1).

4394938732913 is an equidigital number, since it uses as much as digits as its factorization.

4394938732913 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 105815808, while the sum is 65.

The spelling of 4394938732913 in words is "four trillion, three hundred ninety-four billion, nine hundred thirty-eight million, seven hundred thirty-two thousand, nine hundred thirteen".