19713337879716 has 72 divisors (see below), whose sum is σ = 55114467213624. Its totient is φ = 5901706137600.

The previous prime is 19713337879699. The next prime is 19713337879721. The reversal of 19713337879716 is 61797873331791.

19713337879716 is a `hidden beast` number, since 1 + 97 + 1 + 33 + 378 + 79 + 71 + 6 = 666.

It can be written as a sum of positive squares in 4 ways, for example, as 578050007616 + 19135287872100 = 760296^2 + 4374390^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 569205885 + ... + 569240516.

Almost surely, 2^{19713337879716} is an apocalyptic number.

It is an amenable number.

19713337879716 is an abundant number, since it is smaller than the sum of its proper divisors (35401129333908).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

19713337879716 is a wasteful number, since it uses less digits than its factorization.

19713337879716 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1138446461 (or 1138446456 counting only the distinct ones).

The product of its digits is 252047376, while the sum is 72.

The spelling of 19713337879716 in words is "nineteen trillion, seven hundred thirteen billion, three hundred thirty-seven million, eight hundred seventy-nine thousand, seven hundred sixteen".