44104311991 has 2 divisors, whose sum is σ = 44104311992. Its totient is φ = 44104311990.

The previous prime is 44104311967. The next prime is 44104312037. The reversal of 44104311991 is 19911340144.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 44104311991 - 2⁷ = 44104311863 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 44104311991.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (44104311091) 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 as a sum of consecutive naturals, namely, 22052155995 + 22052155996.

It is an arithmetic number, because the mean of its divisors is an integer number (22052155996).

Almost surely, 2^44104311991 is an apocalyptic number.

44104311991 is a deficient number, since it is larger than the sum of its proper divisors (1).

44104311991 is an equidigital number, since it uses as much as digits as its factorization.

44104311991 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 15552, while the sum is 37.

The spelling of 44104311991 in words is "forty-four billion, one hundred four million, three hundred eleven thousand, nine hundred ninety-one".