64376381327 has 16 divisors (see below), whose sum is σ = 66455854080. Its totient is φ = 62328349152.

The previous prime is 64376381309. The next prime is 64376381339. The reversal of 64376381327 is 72318367346.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-64376381327 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (64376381227) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3284318 + ... + 3303860.

It is an arithmetic number, because the mean of its divisors is an integer number (4153490880).

Almost surely, 2^64376381327 is an apocalyptic number.

64376381327 is a deficient number, since it is larger than the sum of its proper divisors (2079472753).

64376381327 is a wasteful number, since it uses less digits than its factorization.

64376381327 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20342.

The product of its digits is 3048192, while the sum is 50.

The spelling of 64376381327 in words is "sixty-four billion, three hundred seventy-six million, three hundred eighty-one thousand, three hundred twenty-seven".