63726630722000 has 40 divisors (see below), whose sum is σ = 154090993090632. Its totient is φ = 25490652288000.

The previous prime is 63726630721889. The next prime is 63726630722057. The reversal of 63726630722000 is 22703662736.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 319555045264 + 63407075676736 = 565292^2 + 7962856^2 .

It is a tau number, because it is divible by the number of its divisors (40).

It is a super-2 number, since 2×63726630722000² (a number of 28 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 7 ways as a sum of consecutive naturals, for example, 15931655681 + ... + 15931659680.

Almost surely, 2^{63726630722000} is an apocalyptic number.

It is an amenable number.

63726630722000 is an abundant number, since it is smaller than the sum of its proper divisors (90364362368632).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

63726630722000 is a wasteful number, since it uses less digits than its factorization.

63726630722000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31863315384 (or 31863315368 counting only the distinct ones).

The product of its (nonzero) digits is 762048, while the sum is 44.

The spelling of 63726630722000 in words is "sixty-three trillion, seven hundred twenty-six billion, six hundred thirty million, seven hundred twenty-two thousand".