64194708355 has 16 divisors (see below), whose sum is σ = 82597518720. Its totient is φ = 47723000832.

The previous prime is 64194708323. The next prime is 64194708379. The reversal of 64194708355 is 55380749146.

64194708355 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a cyclic number.

It is not a de Polignac number, because 64194708355 - 2⁵ = 64194708323 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4773234 + ... + 4786663.

It is an arithmetic number, because the mean of its divisors is an integer number (5162344920).

Almost surely, 2^64194708355 is an apocalyptic number.

64194708355 is a deficient number, since it is larger than the sum of its proper divisors (18402810365).

64194708355 is a wasteful number, since it uses less digits than its factorization.

64194708355 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9559998.

The product of its (nonzero) digits is 3628800, while the sum is 52.

The spelling of 64194708355 in words is "sixty-four billion, one hundred ninety-four million, seven hundred eight thousand, three hundred fifty-five".