44347145891 has 2 divisors, whose sum is σ = 44347145892. Its totient is φ = 44347145890.

The previous prime is 44347145873. The next prime is 44347145903. The reversal of 44347145891 is 19854174344.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 44347145891 - 2¹⁴ = 44347129507 is a prime.

It is not a weakly prime, because it can be changed into another prime (44347145191) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 22173572945 + 22173572946.

It is an arithmetic number, because the mean of its divisors is an integer number (22173572946).

Almost surely, 2^44347145891 is an apocalyptic number.

44347145891 is a deficient number, since it is larger than the sum of its proper divisors (1).

44347145891 is an equidigital number, since it uses as much as digits as its factorization.

44347145891 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1935360, while the sum is 50.

The spelling of 44347145891 in words is "forty-four billion, three hundred forty-seven million, one hundred forty-five thousand, eight hundred ninety-one".