64334573266723 has 4 divisors (see below), whose sum is σ = 64719810232560. Its totient is φ = 63949336300888.

The previous prime is 64334573266693. The next prime is 64334573266757. The reversal of 64334573266723 is 32766237543346.

64334573266723 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 64334573266723 - 2²⁵ = 64334539712291 is a prime.

It is a super-2 number, since 2×64334573266723² (a number of 28 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (64334573066723) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 192618482668 + ... + 192618483001.

It is an arithmetic number, because the mean of its divisors is an integer number (16179952558140).

Almost surely, 2^{64334573266723} is an apocalyptic number.

64334573266723 is a deficient number, since it is larger than the sum of its proper divisors (385236965837).

64334573266723 is a wasteful number, since it uses less digits than its factorization.

64334573266723 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 385236965836.

The product of its digits is 274337280, while the sum is 61.

The spelling of 64334573266723 in words is "sixty-four trillion, three hundred thirty-four billion, five hundred seventy-three million, two hundred sixty-six thousand, seven hundred twenty-three".