63988041807 has 12 divisors (see below), whose sum is σ = 92431160640. Its totient is φ = 42656853408.

The previous prime is 63988041791. The next prime is 63988041883. The reversal of 63988041807 is 70814088936.

63988041807 is a `hidden beast` number, since 63 + 98 + 80 + 418 + 0 + 7 = 666.

It is not a de Polignac number, because 63988041807 - 2⁴ = 63988041791 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (63988041107) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 86419 + ... + 368027.

It is an arithmetic number, because the mean of its divisors is an integer number (7702596720).

Almost surely, 2^63988041807 is an apocalyptic number.

63988041807 is a deficient number, since it is larger than the sum of its proper divisors (28443118833).

63988041807 is a wasteful number, since it uses less digits than its factorization.

63988041807 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 306862 (or 306859 counting only the distinct ones).

The product of its (nonzero) digits is 2322432, while the sum is 54.

The spelling of 63988041807 in words is "sixty-three billion, nine hundred eighty-eight million, forty-one thousand, eight hundred seven".