138655241526 has 64 divisors (see below), whose sum is σ = 306493963776. Its totient is φ = 41594150400.

The previous prime is 138655241513. The next prime is 138655241551. The reversal of 138655241526 is 625142556831.

It is a congruent number.

It is an unprimeable number.

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 31 ways as a sum of consecutive naturals, for example, 8298841 + ... + 8315531.

It is an arithmetic number, because the mean of its divisors is an integer number (4788968184).

Almost surely, 2^138655241526 is an apocalyptic number.

138655241526 is an abundant number, since it is smaller than the sum of its proper divisors (167838722250).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

138655241526 is a wasteful number, since it uses less digits than its factorization.

138655241526 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20277.

The product of its digits is 1728000, while the sum is 48.

The spelling of 138655241526 in words is "one hundred thirty-eight billion, six hundred fifty-five million, two hundred forty-one thousand, five hundred twenty-six".