43149116623 has 2 divisors, whose sum is σ = 43149116624. Its totient is φ = 43149116622.

The previous prime is 43149116611. The next prime is 43149116683. The reversal of 43149116623 is 32661194134.

43149116623 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 43149116623 - 2⁹ = 43149116111 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (43149116683) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21574558311 + 21574558312.

It is an arithmetic number, because the mean of its divisors is an integer number (21574558312).

Almost surely, 2^43149116623 is an apocalyptic number.

43149116623 is a deficient number, since it is larger than the sum of its proper divisors (1).

43149116623 is an equidigital number, since it uses as much as digits as its factorization.

43149116623 is an evil number, because the sum of its binary digits is even.

The product of its digits is 93312, while the sum is 40.

The spelling of 43149116623 in words is "forty-three billion, one hundred forty-nine million, one hundred sixteen thousand, six hundred twenty-three".