64518933958 has 16 divisors (see below), whose sum is σ = 97119736560. Its totient is φ = 32145745536.

The previous prime is 64518933917. The next prime is 64518933959. The reversal of 64518933958 is 85933981546.

It is a junction number, because it is equal to n+sod(n) for n = 64518933896 and 64518933905.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (64518933959) 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 7 ways as a sum of consecutive naturals, for example, 2695210 + ... + 2719042.

It is an arithmetic number, because the mean of its divisors is an integer number (6069983535).

Almost surely, 2^64518933958 is an apocalyptic number.

64518933958 is a deficient number, since it is larger than the sum of its proper divisors (32600802602).

64518933958 is a wasteful number, since it uses less digits than its factorization.

64518933958 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28551.

The product of its digits is 27993600, while the sum is 61.

The spelling of 64518933958 in words is "sixty-four billion, five hundred eighteen million, nine hundred thirty-three thousand, nine hundred fifty-eight".