43912253947 has 2 divisors, whose sum is σ = 43912253948. Its totient is φ = 43912253946.

The previous prime is 43912253923. The next prime is 43912253963. The reversal of 43912253947 is 74935221934.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 43912253947 - 2²⁷ = 43778036219 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 43912253947.

It is not a weakly prime, because it can be changed into another prime (43912253977) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21956126973 + 21956126974.

It is an arithmetic number, because the mean of its divisors is an integer number (21956126974).

Almost surely, 2^43912253947 is an apocalyptic number.

43912253947 is a deficient number, since it is larger than the sum of its proper divisors (1).

43912253947 is an equidigital number, since it uses as much as digits as its factorization.

43912253947 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1632960, while the sum is 49.

The spelling of 43912253947 in words is "forty-three billion, nine hundred twelve million, two hundred fifty-three thousand, nine hundred forty-seven".