138589826655 has 16 divisors (see below), whose sum is σ = 253421397504. Its totient is φ = 63355349280.

The previous prime is 138589826647. The next prime is 138589826693. The reversal of 138589826655 is 556628985831.

It is not a de Polignac number, because 138589826655 - 2³ = 138589826647 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, 659951451 + ... + 659951660.

It is an arithmetic number, because the mean of its divisors is an integer number (15838837344).

Almost surely, 2^138589826655 is an apocalyptic number.

138589826655 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

138589826655 is a deficient number, since it is larger than the sum of its proper divisors (114831570849).

138589826655 is a wasteful number, since it uses less digits than its factorization.

138589826655 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1319903126.

The product of its digits is 124416000, while the sum is 66.

The spelling of 138589826655 in words is "one hundred thirty-eight billion, five hundred eighty-nine million, eight hundred twenty-six thousand, six hundred fifty-five".