43680416865713 has 2 divisors, whose sum is σ = 43680416865714. Its totient is φ = 43680416865712.

The previous prime is 43680416865691. The next prime is 43680416865727. The reversal of 43680416865713 is 31756861408634.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 42773535861904 + 906881003809 = 6540148^2 + 952303^2 .

It is a cyclic number.

It is not a de Polignac number, because 43680416865713 - 2²⁸ = 43680148430257 is a prime.

It is not a weakly prime, because it can be changed into another prime (43680416861713) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21840208432856 + 21840208432857.

It is an arithmetic number, because the mean of its divisors is an integer number (21840208432857).

Almost surely, 2^{43680416865713} is an apocalyptic number.

It is an amenable number.

43680416865713 is a deficient number, since it is larger than the sum of its proper divisors (1).

43680416865713 is an equidigital number, since it uses as much as digits as its factorization.

43680416865713 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 69672960, while the sum is 62.

The spelling of 43680416865713 in words is "forty-three trillion, six hundred eighty billion, four hundred sixteen million, eight hundred sixty-five thousand, seven hundred thirteen".