19941429349 has 2 divisors, whose sum is σ = 19941429350. Its totient is φ = 19941429348.

The previous prime is 19941429311. The next prime is 19941429457. The reversal of 19941429349 is 94392414991.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 15928206849 + 4013222500 = 126207^2 + 63350^2 .

It is a cyclic number.

It is not a de Polignac number, because 19941429349 - 2¹⁵ = 19941396581 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 19941429349.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (19941429049) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 9970714674 + 9970714675.

It is an arithmetic number, because the mean of its divisors is an integer number (9970714675).

Almost surely, 2^19941429349 is an apocalyptic number.

It is an amenable number.

19941429349 is a deficient number, since it is larger than the sum of its proper divisors (1).

19941429349 is an equidigital number, since it uses as much as digits as its factorization.

19941429349 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 2519424, while the sum is 55.

The spelling of 19941429349 in words is "nineteen billion, nine hundred forty-one million, four hundred twenty-nine thousand, three hundred forty-nine".