4044345881 has 2 divisors, whose sum is σ = 4044345882. Its totient is φ = 4044345880.

The previous prime is 4044345841. The next prime is 4044345923. The reversal of 4044345881 is 1885434404.

4044345881 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 3598080256 + 446265625 = 59984^2 + 21125^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-4044345881 is a prime.

It is a super-2 number, since 2×4044345881² = 32713467210323332322, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (4044345841) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2022172940 + 2022172941.

It is an arithmetic number, because the mean of its divisors is an integer number (2022172941).

Almost surely, 2^4044345881 is an apocalyptic number.

It is an amenable number.

4044345881 is a deficient number, since it is larger than the sum of its proper divisors (1).

4044345881 is an equidigital number, since it uses as much as digits as its factorization.

4044345881 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 245760, while the sum is 41.

The square root of 4044345881 is about 63595.1718371764. The cubic root of 4044345881 is about 1593.2457307810.

The spelling of 4044345881 in words is "four billion, forty-four million, three hundred forty-five thousand, eight hundred eighty-one".