43746786943 has 2 divisors, whose sum is σ = 43746786944. Its totient is φ = 43746786942.

The previous prime is 43746786931. The next prime is 43746786983. The reversal of 43746786943 is 34968764734.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-43746786943 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (43746786913) 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, 21873393471 + 21873393472.

It is an arithmetic number, because the mean of its divisors is an integer number (21873393472).

Almost surely, 2^43746786943 is an apocalyptic number.

43746786943 is a deficient number, since it is larger than the sum of its proper divisors (1).

43746786943 is an equidigital number, since it uses as much as digits as its factorization.

43746786943 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 73156608, while the sum is 61.

The spelling of 43746786943 in words is "forty-three billion, seven hundred forty-six million, seven hundred eighty-six thousand, nine hundred forty-three".