43722118623845 has 16 divisors (see below), whose sum is σ = 52479550867968. Its totient is φ = 34969023660480.

The previous prime is 43722118623803. The next prime is 43722118623857. The reversal of 43722118623845 is 54832681122734.

It is a happy number.

It is not a de Polignac number, because 43722118623845 - 2¹² = 43722118619749 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 360811007 + ... + 360932163.

It is an arithmetic number, because the mean of its divisors is an integer number (3279971929248).

Almost surely, 2^{43722118623845} is an apocalyptic number.

It is an amenable number.

43722118623845 is a deficient number, since it is larger than the sum of its proper divisors (8757432244123).

43722118623845 is a wasteful number, since it uses less digits than its factorization.

43722118623845 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 138460.

The product of its digits is 15482880, while the sum is 56.

The spelling of 43722118623845 in words is "forty-three trillion, seven hundred twenty-two billion, one hundred eighteen million, six hundred twenty-three thousand, eight hundred forty-five".