19481132517 has 48 divisors (see below), whose sum is σ = 33414253632. Its totient is φ = 9981377280.

The previous prime is 19481132483. The next prime is 19481132519. The reversal of 19481132517 is 71523118491.

It is not a de Polignac number, because 19481132517 - 2⁷ = 19481132389 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (19481132519) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 35523 + ... + 200559.

It is an arithmetic number, because the mean of its divisors is an integer number (696130284).

Almost surely, 2^19481132517 is an apocalyptic number.

It is an amenable number.

19481132517 is a deficient number, since it is larger than the sum of its proper divisors (13933121115).

19481132517 is a wasteful number, since it uses less digits than its factorization.

19481132517 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 165138 (or 165131 counting only the distinct ones).

The product of its digits is 60480, while the sum is 42.

The spelling of 19481132517 in words is "nineteen billion, four hundred eighty-one million, one hundred thirty-two thousand, five hundred seventeen".