64505222829 has 8 divisors (see below), whose sum is σ = 95563293120. Its totient is φ = 43003481868.

The previous prime is 64505222801. The next prime is 64505222839. The reversal of 64505222829 is 92822250546.

It is a happy number.

64505222829 is a `hidden beast` number, since 6 + 45 + 0 + 522 + 2 + 82 + 9 = 666.

It is not a de Polignac number, because 64505222829 - 2⁹ = 64505222317 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (64505222839) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1194541137 + ... + 1194541190.

It is an arithmetic number, because the mean of its divisors is an integer number (11945411640).

Almost surely, 2^64505222829 is an apocalyptic number.

It is an amenable number.

64505222829 is a deficient number, since it is larger than the sum of its proper divisors (31058070291).

64505222829 is a wasteful number, since it uses less digits than its factorization.

64505222829 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2389082336 (or 2389082330 counting only the distinct ones).

The product of its (nonzero) digits is 691200, while the sum is 45.

The spelling of 64505222829 in words is "sixty-four billion, five hundred five million, two hundred twenty-two thousand, eight hundred twenty-nine".