63725452736 has 28 divisors (see below), whose sum is σ = 137951123640. Its totient is φ = 28966114560.

The previous prime is 63725452709. The next prime is 63725452751.

It is a happy number.

63725452736 is nontrivially palindromic in base 10.

It is a congruent number.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 45258851 + ... + 45260258.

Almost surely, 2^63725452736 is an apocalyptic number.

It is an amenable number.

63725452736 is an abundant number, since it is smaller than the sum of its proper divisors (74225670904).

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

63725452736 is a wasteful number, since it uses less digits than its factorization.

63725452736 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 90519132 (or 90519122 counting only the distinct ones).

The product of its digits is 6350400, while the sum is 50.

The spelling of 63725452736 in words is "sixty-three billion, seven hundred twenty-five million, four hundred fifty-two thousand, seven hundred thirty-six".