138844553064 has 64 divisors (see below), whose sum is σ = 417577612800. Its totient is φ = 37581983424.

The previous prime is 138844553059. The next prime is 138844553117. The reversal of 138844553064 is 460355448831.

It is a junction number, because it is equal to n+sod(n) for n = 138844552998 and 138844553016.

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, 21745642 + ... + 21752025.

It is an arithmetic number, because the mean of its divisors is an integer number (6524650200).

Almost surely, 2^138844553064 is an apocalyptic number.

138844553064 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

138844553064 is an abundant number, since it is smaller than the sum of its proper divisors (278733059736).

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

138844553064 is a wasteful number, since it uses less digits than its factorization.

138844553064 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 43497702 (or 43497698 counting only the distinct ones).

The product of its (nonzero) digits is 5529600, while the sum is 51.

The spelling of 138844553064 in words is "one hundred thirty-eight billion, eight hundred forty-four million, five hundred fifty-three thousand, sixty-four".