138502425776 has 80 divisors (see below), whose sum is σ = 315466371360. Its totient is φ = 58075330560.

The previous prime is 138502425767. The next prime is 138502425779. The reversal of 138502425776 is 677524205831.

It is not an unprimeable number, because it can be changed into a prime (138502425779) 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 15 ways as a sum of consecutive naturals, for example, 3671780 + ... + 3709308.

It is an arithmetic number, because the mean of its divisors is an integer number (3943329642).

Almost surely, 2^138502425776 is an apocalyptic number.

138502425776 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 138502425776, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (157733185680).

138502425776 is an abundant number, since it is smaller than the sum of its proper divisors (176963945584).

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

138502425776 is a wasteful number, since it uses less digits than its factorization.

138502425776 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 39174 (or 39168 counting only the distinct ones).

The product of its (nonzero) digits is 2822400, while the sum is 50.

The spelling of 138502425776 in words is "one hundred thirty-eight billion, five hundred two million, four hundred twenty-five thousand, seven hundred seventy-six".