64468346273 has 4 divisors (see below), whose sum is σ = 64469048340. Its totient is φ = 64467644208.

The previous prime is 64468346233. The next prime is 64468346297. The reversal of 64468346273 is 37264386446.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It can be written as a sum of positive squares in 2 ways, for example, as 49708040209 + 14760306064 = 222953^2 + 121492^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-64468346273 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (64468346233) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 188078 + ... + 405351.

It is an arithmetic number, because the mean of its divisors is an integer number (16117262085).

Almost surely, 2^64468346273 is an apocalyptic number.

It is an amenable number.

64468346273 is a deficient number, since it is larger than the sum of its proper divisors (702067).

64468346273 is a wasteful number, since it uses less digits than its factorization.

64468346273 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 702066.

The product of its digits is 13934592, while the sum is 53.

The spelling of 64468346273 in words is "sixty-four billion, four hundred sixty-eight million, three hundred forty-six thousand, two hundred seventy-three".