138854856557108 has 12 divisors (see below), whose sum is σ = 253561042408800. Its totient is φ = 66408844440312.

The previous prime is 138854856557089. The next prime is 138854856557129. The reversal of 138854856557108 is 801755658458831.

138854856557108 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 754645959458 + ... + 754645959641.

It is an arithmetic number, because the mean of its divisors is an integer number (21130086867400).

Almost surely, 2^{138854856557108} is an apocalyptic number.

It is an amenable number.

138854856557108 is a deficient number, since it is larger than the sum of its proper divisors (114706185851692).

138854856557108 is a wasteful number, since it uses less digits than its factorization.

138854856557108 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1509291919126 (or 1509291919124 counting only the distinct ones).

The product of its (nonzero) digits is 1290240000, while the sum is 74.

The spelling of 138854856557108 in words is "one hundred thirty-eight trillion, eight hundred fifty-four billion, eight hundred fifty-six million, five hundred fifty-seven thousand, one hundred eight".