63134742720 has 112 divisors (see below), whose sum is σ = 229088947968. Its totient is φ = 14430796800.

The previous prime is 63134742703. The next prime is 63134742721. The reversal of 63134742720 is 2724743136.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (112).

It is not an unprimeable number, because it can be changed into a prime (63134742721) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4690806 + ... + 4704245.

Almost surely, 2^63134742720 is an apocalyptic number.

63134742720 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

63134742720 is an abundant number, since it is smaller than the sum of its proper divisors (165954205248).

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

63134742720 is a wasteful number, since it uses less digits than its factorization.

63134742720 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9395078 (or 9395068 counting only the distinct ones).

The product of its (nonzero) digits is 169344, while the sum is 39.

The spelling of 63134742720 in words is "sixty-three billion, one hundred thirty-four million, seven hundred forty-two thousand, seven hundred twenty".