64427067381277 has 16 divisors (see below), whose sum is σ = 66195940063680. Its totient is φ = 62680785956352.

The previous prime is 64427067381251. The next prime is 64427067381311. The reversal of 64427067381277 is 77218376072446.

64427067381277 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 64427067381277 - 2¹¹ = 64427067379229 is a prime.

It is a super-2 number, since 2×64427067381277² (a number of 28 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (64427067381877) 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, 353664738 + ... + 353846860.

It is an arithmetic number, because the mean of its divisors is an integer number (4137246253980).

Almost surely, 2^{64427067381277} is an apocalyptic number.

It is an amenable number.

64427067381277 is a deficient number, since it is larger than the sum of its proper divisors (1768872682403).

64427067381277 is a wasteful number, since it uses less digits than its factorization.

64427067381277 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 244092.

The product of its (nonzero) digits is 132765696, while the sum is 64.

The spelling of 64427067381277 in words is "sixty-four trillion, four hundred twenty-seven billion, sixty-seven million, three hundred eighty-one thousand, two hundred seventy-seven".