19415417149 has 16 divisors (see below), whose sum is σ = 20232875520. Its totient is φ = 18610764480.

The previous prime is 19415417143. The next prime is 19415417167. The reversal of 19415417149 is 94171451491.

It is a cyclic number.

It is not a de Polignac number, because 19415417149 - 2³³ = 10825482557 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 19415417099 and 19415417108.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (19415417143) 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, 1391562 + ... + 1405444.

It is an arithmetic number, because the mean of its divisors is an integer number (1264554720).

Almost surely, 2^19415417149 is an apocalyptic number.

It is an amenable number.

19415417149 is a deficient number, since it is larger than the sum of its proper divisors (817458371).

19415417149 is a wasteful number, since it uses less digits than its factorization.

19415417149 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14340.

The product of its digits is 181440, while the sum is 46.

The spelling of 19415417149 in words is "nineteen billion, four hundred fifteen million, four hundred seventeen thousand, one hundred forty-nine".