138826080260508 has 48 divisors (see below), whose sum is σ = 342985274311680. Its totient is φ = 43552874536704.

The previous prime is 138826080260419. The next prime is 138826080260519. The reversal of 138826080260508 is 805062080628831.

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, 19179235 + ... + 25406597.

It is an arithmetic number, because the mean of its divisors is an integer number (7145526548160).

Almost surely, 2^{138826080260508} is an apocalyptic number.

It is an amenable number.

138826080260508 is an abundant number, since it is smaller than the sum of its proper divisors (204159194051172).

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

138826080260508 is a wasteful number, since it uses less digits than its factorization.

138826080260508 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6336666 (or 6336664 counting only the distinct ones).

The product of its (nonzero) digits is 8847360, while the sum is 57.

The spelling of 138826080260508 in words is "one hundred thirty-eight trillion, eight hundred twenty-six billion, eighty million, two hundred sixty thousand, five hundred eight".