4344131993 has 2 divisors, whose sum is σ = 4344131994. Its totient is φ = 4344131992.

The previous prime is 4344131989. The next prime is 4344132007. The reversal of 4344131993 is 3991314434.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 3675754384 + 668377609 = 60628^2 + 25853^2 .

It is a cyclic number.

It is not a de Polignac number, because 4344131993 - 2² = 4344131989 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 4344131993.

It is not a weakly prime, because it can be changed into another prime (4344131983) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2172065996 + 2172065997.

It is an arithmetic number, because the mean of its divisors is an integer number (2172065997).

Almost surely, 2^4344131993 is an apocalyptic number.

It is an amenable number.

4344131993 is a deficient number, since it is larger than the sum of its proper divisors (1).

4344131993 is an equidigital number, since it uses as much as digits as its factorization.

4344131993 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 139968, while the sum is 41.

The square root of 4344131993 is about 65910.0295326895. The cubic root of 4344131993 is about 1631.6775473937.

The spelling of 4344131993 in words is "four billion, three hundred forty-four million, one hundred thirty-one thousand, nine hundred ninety-three".