43948091039 has 2 divisors, whose sum is σ = 43948091040. Its totient is φ = 43948091038.

The previous prime is 43948091021. The next prime is 43948091051. The reversal of 43948091039 is 93019084934.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 43948091039 - 2¹⁶ = 43948025503 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (43948091009) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21974045519 + 21974045520.

It is an arithmetic number, because the mean of its divisors is an integer number (21974045520).

Almost surely, 2^43948091039 is an apocalyptic number.

43948091039 is a deficient number, since it is larger than the sum of its proper divisors (1).

43948091039 is an equidigital number, since it uses as much as digits as its factorization.

43948091039 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 839808, while the sum is 50.

The spelling of 43948091039 in words is "forty-three billion, nine hundred forty-eight million, ninety-one thousand, thirty-nine".