138064938427 has 16 divisors (see below), whose sum is σ = 150620904000. Its totient is φ = 125790534144.

The previous prime is 138064938413. The next prime is 138064938493. The reversal of 138064938427 is 724839460831.

138064938427 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 138064938427 - 2¹⁵ = 138064905659 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (138064935427) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 553474 + ... + 763192.

It is an arithmetic number, because the mean of its divisors is an integer number (9413806500).

Almost surely, 2^138064938427 is an apocalyptic number.

138064938427 is a deficient number, since it is larger than the sum of its proper divisors (12555965573).

138064938427 is a wasteful number, since it uses less digits than its factorization.

138064938427 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 210390.

The product of its (nonzero) digits is 6967296, while the sum is 55.

The spelling of 138064938427 in words is "one hundred thirty-eight billion, sixty-four million, nine hundred thirty-eight thousand, four hundred twenty-seven".