19844352007 has 2 divisors, whose sum is σ = 19844352008. Its totient is φ = 19844352006.

The previous prime is 19844351959. The next prime is 19844352019. The reversal of 19844352007 is 70025344891.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 19844352007 - 2³¹ = 17696868359 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (19844352607) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 9922176003 + 9922176004.

It is an arithmetic number, because the mean of its divisors is an integer number (9922176004).

Almost surely, 2^19844352007 is an apocalyptic number.

19844352007 is a deficient number, since it is larger than the sum of its proper divisors (1).

19844352007 is an equidigital number, since it uses as much as digits as its factorization.

19844352007 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 241920, while the sum is 43.

Adding to 19844352007 its reverse (70025344891), we get a palindrome (89869696898).

The spelling of 19844352007 in words is "nineteen billion, eight hundred forty-four million, three hundred fifty-two thousand, seven".