64006000138 has 16 divisors (see below), whose sum is σ = 96533042760. Its totient is φ = 31828443136.

The previous prime is 64006000109. The next prime is 64006000139. The reversal of 64006000138 is 83100060046.

It can be written as a sum of positive squares in 4 ways, for example, as 62716687489 + 1289312649 = 250433^2 + 35907^2 .

It is not an unprimeable number, because it can be changed into a prime (64006000139) 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, 1055178 + ... + 1114186.

Almost surely, 2^64006000138 is an apocalyptic number.

64006000138 is a deficient number, since it is larger than the sum of its proper divisors (32527042622).

64006000138 is a wasteful number, since it uses less digits than its factorization.

64006000138 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 61961.

The product of its (nonzero) digits is 3456, while the sum is 28.

The spelling of 64006000138 in words is "sixty-four billion, six million, one hundred thirty-eight", and thus it is an aban number.