19747760504768 has 56 divisors (see below), whose sum is σ = 40894722916512. Its totient is φ = 9443661917184.

The previous prime is 19747760504737. The next prime is 19747760504809. The reversal of 19747760504768 is 86740506774791.

It is a congruent number.

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, 14597846 + ... + 15893162.

Almost surely, 2^{19747760504768} is an apocalyptic number.

It is an amenable number.

19747760504768 is an abundant number, since it is smaller than the sum of its proper divisors (21146962411744).

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

19747760504768 is a wasteful number, since it uses less digits than its factorization.

19747760504768 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1305709 (or 1305699 counting only the distinct ones).

The product of its (nonzero) digits is 497871360, while the sum is 71.

The spelling of 19747760504768 in words is "nineteen trillion, seven hundred forty-seven billion, seven hundred sixty million, five hundred four thousand, seven hundred sixty-eight".