43713270066649 has 2 divisors, whose sum is σ = 43713270066650. Its totient is φ = 43713270066648.

The previous prime is 43713270066629. The next prime is 43713270066679. The reversal of 43713270066649 is 94666007231734.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 40732923595225 + 2980346471424 = 6382235^2 + 1726368^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-43713270066649 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 43713270066593 and 43713270066602.

It is not a weakly prime, because it can be changed into another prime (43713270066619) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21856635033324 + 21856635033325.

It is an arithmetic number, because the mean of its divisors is an integer number (21856635033325).

Almost surely, 2^{43713270066649} is an apocalyptic number.

It is an amenable number.

43713270066649 is a deficient number, since it is larger than the sum of its proper divisors (1).

43713270066649 is an equidigital number, since it uses as much as digits as its factorization.

43713270066649 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 27433728, while the sum is 58.

The spelling of 43713270066649 in words is "forty-three trillion, seven hundred thirteen billion, two hundred seventy million, sixty-six thousand, six hundred forty-nine".