43336972813 has 2 divisors, whose sum is σ = 43336972814. Its totient is φ = 43336972812.

The previous prime is 43336972799. The next prime is 43336972841. The reversal of 43336972813 is 31827963334.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 41904955849 + 1432016964 = 204707^2 + 37842^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-43336972813 is a prime.

It is a super-2 number, since 2×43336972813² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (43336972843) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21668486406 + 21668486407.

It is an arithmetic number, because the mean of its divisors is an integer number (21668486407).

Almost surely, 2^43336972813 is an apocalyptic number.

It is an amenable number.

43336972813 is a deficient number, since it is larger than the sum of its proper divisors (1).

43336972813 is an equidigital number, since it uses as much as digits as its factorization.

43336972813 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1959552, while the sum is 49.

The spelling of 43336972813 in words is "forty-three billion, three hundred thirty-six million, nine hundred seventy-two thousand, eight hundred thirteen".