43920822037 has 2 divisors, whose sum is σ = 43920822038. Its totient is φ = 43920822036.

The previous prime is 43920821969. The next prime is 43920822061. The reversal of 43920822037 is 73022802934.

43920822037 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 36211806436 + 7709015601 = 190294^2 + 87801^2 .

It is a cyclic number.

It is not a de Polignac number, because 43920822037 - 2¹¹ = 43920819989 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (43920822437) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21960411018 + 21960411019.

It is an arithmetic number, because the mean of its divisors is an integer number (21960411019).

Almost surely, 2^43920822037 is an apocalyptic number.

It is an amenable number.

43920822037 is a deficient number, since it is larger than the sum of its proper divisors (1).

43920822037 is an equidigital number, since it uses as much as digits as its factorization.

43920822037 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 145152, while the sum is 40.

The spelling of 43920822037 in words is "forty-three billion, nine hundred twenty million, eight hundred twenty-two thousand, thirty-seven".