64200087568 has 10 divisors (see below), whose sum is σ = 124387669694. Its totient is φ = 32100043776.

The previous prime is 64200087551. The next prime is 64200087587. The reversal of 64200087568 is 86578000246.

64200087568 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., 57923011584 + 6277075984 = 240672^2 + 79228^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2006252721 + ... + 2006252752.

Almost surely, 2^64200087568 is an apocalyptic number.

It is an amenable number.

64200087568 is a deficient number, since it is larger than the sum of its proper divisors (60187582126).

64200087568 is a wasteful number, since it uses less digits than its factorization.

64200087568 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4012505481 (or 4012505475 counting only the distinct ones).

The product of its (nonzero) digits is 645120, while the sum is 46.

The spelling of 64200087568 in words is "sixty-four billion, two hundred million, eighty-seven thousand, five hundred sixty-eight".