64811675034206 has 32 divisors (see below), whose sum is σ = 102868260262560. Its totient is φ = 30540067946496.

The previous prime is 64811675034151. The next prime is 64811675034209. The reversal of 64811675034206 is 60243057611846.

It is a happy number.

It is a super-2 number, since 2×64811675034206² (a number of 28 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (64811675034209) 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, 217795790 + ... + 218093166.

It is an arithmetic number, because the mean of its divisors is an integer number (3214633133205).

Almost surely, 2^{64811675034206} is an apocalyptic number.

64811675034206 is a deficient number, since it is larger than the sum of its proper divisors (38056585228354).

64811675034206 is a wasteful number, since it uses less digits than its factorization.

64811675034206 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 327308.

The product of its (nonzero) digits is 5806080, while the sum is 53.

The spelling of 64811675034206 in words is "sixty-four trillion, eight hundred eleven billion, six hundred seventy-five million, thirty-four thousand, two hundred six".