64032568450 has 24 divisors (see below), whose sum is σ = 119120816628. Its totient is φ = 25608674880.

The previous prime is 64032568417. The next prime is 64032568469. The reversal of 64032568450 is 5486523046.

It can be written as a sum of positive squares in 6 ways, for example, as 8420081121 + 55612487329 = 91761^2 + 235823^2 .

It is a junction number, because it is equal to n+sod(n) for n = 64032568397 and 64032568406.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 196864 + ... + 408436.

Almost surely, 2^64032568450 is an apocalyptic number.

64032568450 is a deficient number, since it is larger than the sum of its proper divisors (55088248178).

64032568450 is a wasteful number, since it uses less digits than its factorization.

64032568450 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 217638 (or 217633 counting only the distinct ones).

The product of its (nonzero) digits is 691200, while the sum is 43.

The spelling of 64032568450 in words is "sixty-four billion, thirty-two million, five hundred sixty-eight thousand, four hundred fifty".