138576583428828 has 48 divisors (see below), whose sum is σ = 332087297080224. Its totient is φ = 44943368106240.

The previous prime is 138576583428821. The next prime is 138576583428851. The reversal of 138576583428828 is 828824385675831.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (138576583428821) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 52462026 + ... + 55040142.

It is an arithmetic number, because the mean of its divisors is an integer number (6918485355838).

Almost surely, 2^{138576583428828} is an apocalyptic number.

It is an amenable number.

138576583428828 is an abundant number, since it is smaller than the sum of its proper divisors (193510713651396).

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

138576583428828 is a wasteful number, since it uses less digits than its factorization.

138576583428828 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2699222 (or 2699220 counting only the distinct ones).

The product of its digits is 4954521600, while the sum is 78.

The spelling of 138576583428828 in words is "one hundred thirty-eight trillion, five hundred seventy-six billion, five hundred eighty-three million, four hundred twenty-eight thousand, eight hundred twenty-eight".