63728126500 has 24 divisors (see below), whose sum is σ = 139182229368. Its totient is φ = 25491250400.

The previous prime is 63728126467. The next prime is 63728126513. The reversal of 63728126500 is 562182736.

63728126500 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 3182656 + 63724943844 = 1784^2 + 252438^2 .

It is a super-2 number, since 2×63728126500² (a number of 22 digits) contains 22 as substring.

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, 63727627 + ... + 63728626.

It is an arithmetic number, because the mean of its divisors is an integer number (5799259557).

Almost surely, 2^63728126500 is an apocalyptic number.

It is an amenable number.

63728126500 is an abundant number, since it is smaller than the sum of its proper divisors (75454102868).

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

63728126500 is a wasteful number, since it uses less digits than its factorization.

63728126500 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 127456272 (or 127456260 counting only the distinct ones).

The product of its (nonzero) digits is 120960, while the sum is 40.

The spelling of 63728126500 in words is "sixty-three billion, seven hundred twenty-eight million, one hundred twenty-six thousand, five hundred".