44399820313 has 2 divisors, whose sum is σ = 44399820314. Its totient is φ = 44399820312.

The previous prime is 44399820301. The next prime is 44399820343. The reversal of 44399820313 is 31302899344.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 43751252224 + 648568089 = 209168^2 + 25467^2 .

It is a cyclic number.

It is not a de Polignac number, because 44399820313 - 2²⁹ = 43862949401 is a prime.

It is not a weakly prime, because it can be changed into another prime (44399820343) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 22199910156 + 22199910157.

It is an arithmetic number, because the mean of its divisors is an integer number (22199910157).

Almost surely, 2^44399820313 is an apocalyptic number.

It is an amenable number.

44399820313 is a deficient number, since it is larger than the sum of its proper divisors (1).

44399820313 is an equidigital number, since it uses as much as digits as its factorization.

44399820313 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 559872, while the sum is 46.

The spelling of 44399820313 in words is "forty-four billion, three hundred ninety-nine million, eight hundred twenty thousand, three hundred thirteen".