43628312040791 has 2 divisors, whose sum is σ = 43628312040792. Its totient is φ = 43628312040790.

The previous prime is 43628312040787. The next prime is 43628312040793. The reversal of 43628312040791 is 19704021382634.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 43628312040791 - 2² = 43628312040787 is a prime.

It is a super-2 number, since 2×43628312040791² (a number of 28 digits) contains 22 as substring.

Together with 43628312040793, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (43628312040793) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21814156020395 + 21814156020396.

It is an arithmetic number, because the mean of its divisors is an integer number (21814156020396).

Almost surely, 2^{43628312040791} is an apocalyptic number.

43628312040791 is a deficient number, since it is larger than the sum of its proper divisors (1).

43628312040791 is an equidigital number, since it uses as much as digits as its factorization.

43628312040791 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1741824, while the sum is 50.

The spelling of 43628312040791 in words is "forty-three trillion, six hundred twenty-eight billion, three hundred twelve million, forty thousand, seven hundred ninety-one".