647603644132 has 6 divisors (see below), whose sum is σ = 1133306377238. Its totient is φ = 323801822064.

The previous prime is 647603644111. The next prime is 647603644139. The reversal of 647603644132 is 231446306746.

647603644132 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 only one way, i.e., 578046966436 + 69556677696 = 760294^2 + 263736^2 .

It is not an unprimeable number, because it can be changed into a prime (647603644139) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 80950455513 + ... + 80950455520.

Almost surely, 2^647603644132 is an apocalyptic number.

It is an amenable number.

647603644132 is a deficient number, since it is larger than the sum of its proper divisors (485702733106).

647603644132 is a wasteful number, since it uses less digits than its factorization.

647603644132 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 161900911037 (or 161900911035 counting only the distinct ones).

The product of its (nonzero) digits is 1741824, while the sum is 46.

The spelling of 647603644132 in words is "six hundred forty-seven billion, six hundred three million, six hundred forty-four thousand, one hundred thirty-two".