63727072736 has 24 divisors (see below), whose sum is σ = 125529992280. Its totient is φ = 31846439808.

The previous prime is 63727072723. The next prime is 63727072741.

63727072736 is nontrivially palindromic in base 10.

It is a super-2 number, since 2×63727072736² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

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, 473591 + ... + 593078.

It is an arithmetic number, because the mean of its divisors is an integer number (5230416345).

Almost surely, 2^63727072736 is an apocalyptic number.

It is an amenable number.

63727072736 is a deficient number, since it is larger than the sum of its proper divisors (61802919544).

63727072736 is a wasteful number, since it uses less digits than its factorization.

63727072736 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1068546 (or 1068538 counting only the distinct ones).

The product of its (nonzero) digits is 3111696, while the sum is 50.

The spelling of 63727072736 in words is "sixty-three billion, seven hundred twenty-seven million, seventy-two thousand, seven hundred thirty-six".