63304500640 has 48 divisors (see below), whose sum is σ = 149609256552. Its totient is φ = 25312932864.

The previous prime is 63304500619. The next prime is 63304500659. The reversal of 63304500640 is 4600540336.

63304500640 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 61007024016 + 2297476624 = 246996^2 + 47932^2 .

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, 398902 + ... + 534538.

Almost surely, 2^63304500640 is an apocalyptic number.

It is an amenable number.

63304500640 is an abundant number, since it is smaller than the sum of its proper divisors (86304755912).

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

63304500640 is a wasteful number, since it uses less digits than its factorization.

63304500640 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 138569 (or 138561 counting only the distinct ones).

The product of its (nonzero) digits is 25920, while the sum is 31.

The spelling of 63304500640 in words is "sixty-three billion, three hundred four million, five hundred thousand, six hundred forty".