19464432349 has 2 divisors, whose sum is σ = 19464432350. Its totient is φ = 19464432348.

The previous prime is 19464432311. The next prime is 19464432359. The reversal of 19464432349 is 94323446491.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 10724052249 + 8740380100 = 103557^2 + 93490^2 .

It is a cyclic number.

It is not a de Polignac number, because 19464432349 - 2¹¹ = 19464430301 is a prime.

It is a super-3 number, since 3×19464432349³ (a number of 32 digits) contains 333 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (19464432359) 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, 9732216174 + 9732216175.

It is an arithmetic number, because the mean of its divisors is an integer number (9732216175).

Almost surely, 2^19464432349 is an apocalyptic number.

It is an amenable number.

19464432349 is a deficient number, since it is larger than the sum of its proper divisors (1).

19464432349 is an equidigital number, since it uses as much as digits as its factorization.

19464432349 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 2239488, while the sum is 49.

The spelling of 19464432349 in words is "nineteen billion, four hundred sixty-four million, four hundred thirty-two thousand, three hundred forty-nine".