19414468449 has 16 divisors (see below), whose sum is σ = 28765429440. Its totient is φ = 12941514720.

The previous prime is 19414468421. The next prime is 19414468471. The reversal of 19414468449 is 94486441491.

19414468449 is a `hidden beast` number, since 194 + 1 + 4 + 4 + 6 + 8 + 449 = 666.

It is not a de Polignac number, because 19414468449 - 2⁵ = 19414468417 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 19414468395 and 19414468404.

It is not an unprimeable number, because it can be changed into a prime (19414468049) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 236829 + ... + 308085.

It is an arithmetic number, because the mean of its divisors is an integer number (1797839340).

Almost surely, 2^19414468449 is an apocalyptic number.

It is an amenable number.

19414468449 is a deficient number, since it is larger than the sum of its proper divisors (9350960991).

19414468449 is a wasteful number, since it uses less digits than its factorization.

19414468449 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 81357 (or 81351 counting only the distinct ones).

The product of its digits is 3981312, while the sum is 54.

The spelling of 19414468449 in words is "nineteen billion, four hundred fourteen million, four hundred sixty-eight thousand, four hundred forty-nine".