43440637483 has 2 divisors, whose sum is σ = 43440637484. Its totient is φ = 43440637482.

The previous prime is 43440637481. The next prime is 43440637543. The reversal of 43440637483 is 38473604434.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 43440637483 - 2¹ = 43440637481 is a prime.

Together with 43440637481, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (43440637481) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21720318741 + 21720318742.

It is an arithmetic number, because the mean of its divisors is an integer number (21720318742).

Almost surely, 2^43440637483 is an apocalyptic number.

43440637483 is a deficient number, since it is larger than the sum of its proper divisors (1).

43440637483 is an equidigital number, since it uses as much as digits as its factorization.

43440637483 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2322432, while the sum is 46.

The spelling of 43440637483 in words is "forty-three billion, four hundred forty million, six hundred thirty-seven thousand, four hundred eighty-three".