64388312695 has 16 divisors (see below), whose sum is σ = 91152488448. Its totient is φ = 42727727520.

The previous prime is 64388312689. The next prime is 64388312741. The reversal of 64388312695 is 59621388346.

It is not a de Polignac number, because 64388312695 - 2³ = 64388312687 is a prime.

It is a congruent number.

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, 29670949 + ... + 29673118.

It is an arithmetic number, because the mean of its divisors is an integer number (5697030528).

Almost surely, 2^64388312695 is an apocalyptic number.

64388312695 is a deficient number, since it is larger than the sum of its proper divisors (26764175753).

64388312695 is a wasteful number, since it uses less digits than its factorization.

64388312695 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 59344110.

The product of its digits is 7464960, while the sum is 55.

The spelling of 64388312695 in words is "sixty-four billion, three hundred eighty-eight million, three hundred twelve thousand, six hundred ninety-five".