63675765715 has 4 divisors (see below), whose sum is σ = 76410918864. Its totient is φ = 50940612568.

The previous prime is 63675765683. The next prime is 63675765731. The reversal of 63675765715 is 51756757636.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 63675765715 - 2⁵ = 63675765683 is a prime.

It is a super-2 number, since 2×63675765715² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 63675765715.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6367576567 + ... + 6367576576.

It is an arithmetic number, because the mean of its divisors is an integer number (19102729716).

Almost surely, 2^63675765715 is an apocalyptic number.

63675765715 is a deficient number, since it is larger than the sum of its proper divisors (12735153149).

63675765715 is a wasteful number, since it uses less digits than its factorization.

63675765715 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12735153148.

The product of its digits is 27783000, while the sum is 58.

The spelling of 63675765715 in words is "sixty-three billion, six hundred seventy-five million, seven hundred sixty-five thousand, seven hundred fifteen".