43055242369 has 2 divisors, whose sum is σ = 43055242370. Its totient is φ = 43055242368.

The previous prime is 43055242361. The next prime is 43055242421. The reversal of 43055242369 is 96324255034.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 42326890225 + 728352144 = 205735^2 + 26988^2 .

It is a cyclic number.

It is not a de Polignac number, because 43055242369 - 2³ = 43055242361 is a prime.

It is a super-2 number, since 2×43055242369² (a number of 22 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (43055242361) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21527621184 + 21527621185.

It is an arithmetic number, because the mean of its divisors is an integer number (21527621185).

Almost surely, 2^43055242369 is an apocalyptic number.

It is an amenable number.

43055242369 is a deficient number, since it is larger than the sum of its proper divisors (1).

43055242369 is an equidigital number, since it uses as much as digits as its factorization.

43055242369 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 777600, while the sum is 43.

The spelling of 43055242369 in words is "forty-three billion, fifty-five million, two hundred forty-two thousand, three hundred sixty-nine".