64433323607 has 4 divisors (see below), whose sum is σ = 64483545720. Its totient is φ = 64383101496.

The previous prime is 64433323601. The next prime is 64433323609. The reversal of 64433323607 is 70632333446.

It is a happy number.

64433323607 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 64433323607 - 2²⁶ = 64366214743 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (64433323601) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 25109132 + ... + 25111697.

It is an arithmetic number, because the mean of its divisors is an integer number (16120886430).

Almost surely, 2^64433323607 is an apocalyptic number.

64433323607 is a deficient number, since it is larger than the sum of its proper divisors (50222113).

64433323607 is a wasteful number, since it uses less digits than its factorization.

64433323607 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 50222112.

The product of its (nonzero) digits is 653184, while the sum is 41.

The spelling of 64433323607 in words is "sixty-four billion, four hundred thirty-three million, three hundred twenty-three thousand, six hundred seven".