63688427965468 has 6 divisors (see below), whose sum is σ = 111454748939576. Its totient is φ = 31844213982732.

The previous prime is 63688427965439. The next prime is 63688427965507. The reversal of 63688427965468 is 86456972488636.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 63688427965391 and 63688427965400.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7961053495680 + ... + 7961053495687.

Almost surely, 2^{63688427965468} is an apocalyptic number.

It is an amenable number.

63688427965468 is a deficient number, since it is larger than the sum of its proper divisors (47766320974108).

63688427965468 is a wasteful number, since it uses less digits than its factorization.

63688427965468 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15922106991371 (or 15922106991369 counting only the distinct ones).

The product of its digits is 20065812480, while the sum is 82.

The spelling of 63688427965468 in words is "sixty-three trillion, six hundred eighty-eight billion, four hundred twenty-seven million, nine hundred sixty-five thousand, four hundred sixty-eight".