19433468817 has 24 divisors (see below), whose sum is σ = 32118082880. Its totient is φ = 11091880800.

The previous prime is 19433468809. The next prime is 19433468833. The reversal of 19433468817 is 71886433491.

It is not a de Polignac number, because 19433468817 - 2³ = 19433468809 is a prime.

It is a super-2 number, since 2×19433468817² (a number of 21 digits) contains 22 as substring.

It is a Smith number, since the sum of its digits (54) coincides with the sum of the digits of its prime factors.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (19433468017) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 125434 + ... + 233667.

Almost surely, 2^19433468817 is an apocalyptic number.

It is an amenable number.

19433468817 is a deficient number, since it is larger than the sum of its proper divisors (12684614063).

19433468817 is a wasteful number, since it uses less digits than its factorization.

19433468817 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 359973 (or 359970 counting only the distinct ones).

The product of its digits is 3483648, while the sum is 54.

The spelling of 19433468817 in words is "nineteen billion, four hundred thirty-three million, four hundred sixty-eight thousand, eight hundred seventeen".