63718734717 has 48 divisors (see below), whose sum is σ = 101830030848. Its totient is φ = 38071412640.

The previous prime is 63718734701. The next prime is 63718734727. The reversal of 63718734717 is 71743781736.

It is not a de Polignac number, because 63718734717 - 2⁴ = 63718734701 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (63718734727) 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, 3993718 + ... + 4009640.

It is an arithmetic number, because the mean of its divisors is an integer number (2121458976).

Almost surely, 2^63718734717 is an apocalyptic number.

It is an amenable number.

63718734717 is a deficient number, since it is larger than the sum of its proper divisors (38111296131).

63718734717 is a wasteful number, since it uses less digits than its factorization.

63718734717 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16510 (or 16507 counting only the distinct ones).

The product of its digits is 4148928, while the sum is 54.

The spelling of 63718734717 in words is "sixty-three billion, seven hundred eighteen million, seven hundred thirty-four thousand, seven hundred seventeen".