43407990911 has 2 divisors, whose sum is σ = 43407990912. Its totient is φ = 43407990910.

The previous prime is 43407990889. The next prime is 43407990929. The reversal of 43407990911 is 11909970434.

43407990911 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-43407990911 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (43407993911) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21703995455 + 21703995456.

It is an arithmetic number, because the mean of its divisors is an integer number (21703995456).

Almost surely, 2^43407990911 is an apocalyptic number.

43407990911 is a deficient number, since it is larger than the sum of its proper divisors (1).

43407990911 is an equidigital number, since it uses as much as digits as its factorization.

43407990911 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 244944, while the sum is 47.

The spelling of 43407990911 in words is "forty-three billion, four hundred seven million, nine hundred ninety thousand, nine hundred eleven".