43273037740349 has 2 divisors, whose sum is σ = 43273037740350. Its totient is φ = 43273037740348.

The previous prime is 43273037740279. The next prime is 43273037740379. The reversal of 43273037740349 is 94304773037234.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 26441038147225 + 16831999593124 = 5142085^2 + 4102682^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-43273037740349 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 43273037740294 and 43273037740303.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (43273037740379) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21636518870174 + 21636518870175.

It is an arithmetic number, because the mean of its divisors is an integer number (21636518870175).

Almost surely, 2^{43273037740349} is an apocalyptic number.

It is an amenable number.

43273037740349 is a deficient number, since it is larger than the sum of its proper divisors (1).

43273037740349 is an equidigital number, since it uses as much as digits as its factorization.

43273037740349 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 32006016, while the sum is 56.

The spelling of 43273037740349 in words is "forty-three trillion, two hundred seventy-three billion, thirty-seven million, seven hundred forty thousand, three hundred forty-nine".