43243344451 has 2 divisors, whose sum is σ = 43243344452. Its totient is φ = 43243344450.

The previous prime is 43243344433. The next prime is 43243344467. The reversal of 43243344451 is 15444334234.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 43243344451 - 2²³ = 43234955843 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 43243344451.

It is not a weakly prime, because it can be changed into another prime (43243344401) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21621672225 + 21621672226.

It is an arithmetic number, because the mean of its divisors is an integer number (21621672226).

Almost surely, 2^43243344451 is an apocalyptic number.

43243344451 is a deficient number, since it is larger than the sum of its proper divisors (1).

43243344451 is an equidigital number, since it uses as much as digits as its factorization.

43243344451 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 276480, while the sum is 37.

Adding to 43243344451 its reverse (15444334234), we get a palindrome (58687678685).

The spelling of 43243344451 in words is "forty-three billion, two hundred forty-three million, three hundred forty-four thousand, four hundred fifty-one".