43722893497 has 4 divisors (see below), whose sum is σ = 43728873076. Its totient is φ = 43716913920.

The previous prime is 43722893491. The next prime is 43722893561. The reversal of 43722893497 is 79439822734.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 7791416361 + 35931477136 = 88269^2 + 189556^2 .

It is a cyclic number.

It is not a de Polignac number, because 43722893497 - 2¹¹ = 43722891449 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (43722893491) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2978808 + ... + 2993449.

It is an arithmetic number, because the mean of its divisors is an integer number (10932218269).

Almost surely, 2^43722893497 is an apocalyptic number.

It is an amenable number.

43722893497 is a deficient number, since it is larger than the sum of its proper divisors (5979579).

43722893497 is an equidigital number, since it uses as much as digits as its factorization.

43722893497 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5979578.

The product of its digits is 18289152, while the sum is 58.

The spelling of 43722893497 in words is "forty-three billion, seven hundred twenty-two million, eight hundred ninety-three thousand, four hundred ninety-seven".