19217413408 has 48 divisors (see below), whose sum is σ = 38255190624. Its totient is φ = 9501972480.

The previous prime is 19217413393. The next prime is 19217413417. The reversal of 19217413408 is 80431471291.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7035403 + ... + 7038133.

It is an arithmetic number, because the mean of its divisors is an integer number (796983138).

Almost surely, 2^19217413408 is an apocalyptic number.

It is an amenable number.

19217413408 is a deficient number, since it is larger than the sum of its proper divisors (19037777216).

19217413408 is a wasteful number, since it uses less digits than its factorization.

19217413408 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5105 (or 5097 counting only the distinct ones).

The product of its (nonzero) digits is 48384, while the sum is 40.

Adding to 19217413408 its reverse (80431471291), we get a palindrome (99648884699).

The spelling of 19217413408 in words is "nineteen billion, two hundred seventeen million, four hundred thirteen thousand, four hundred eight".