64234289817 has 16 divisors (see below), whose sum is σ = 95189640000. Its totient is φ = 42810381792.

The previous prime is 64234289813. The next prime is 64234289837. The reversal of 64234289817 is 71898243246.

It is not a de Polignac number, because 64234289817 - 2² = 64234289813 is a prime.

It is not an unprimeable number, because it can be changed into a prime (64234289813) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 251767 + ... + 438012.

It is an arithmetic number, because the mean of its divisors is an integer number (5949352500).

Almost surely, 2^64234289817 is an apocalyptic number.

It is an amenable number.

64234289817 is a deficient number, since it is larger than the sum of its proper divisors (30955350183).

64234289817 is a wasteful number, since it uses less digits than its factorization.

64234289817 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 693237 (or 693231 counting only the distinct ones).

The product of its digits is 4644864, while the sum is 54.

The spelling of 64234289817 in words is "sixty-four billion, two hundred thirty-four million, two hundred eighty-nine thousand, eight hundred seventeen".