138478094032 has 20 divisors (see below), whose sum is σ = 268435319040. Its totient is φ = 69204463328.

The previous prime is 138478093973. The next prime is 138478094033. The reversal of 138478094032 is 230490874831.

It is a happy number.

138478094032 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 not an unprimeable number, because it can be changed into a prime (138478094033) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2128432 + ... + 2192527.

It is an arithmetic number, because the mean of its divisors is an integer number (13421765952).

Almost surely, 2^138478094032 is an apocalyptic number.

It is an amenable number.

138478094032 is a deficient number, since it is larger than the sum of its proper divisors (129957225008).

138478094032 is a wasteful number, since it uses less digits than its factorization.

138478094032 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4322970 (or 4322964 counting only the distinct ones).

The product of its (nonzero) digits is 1161216, while the sum is 49.

The spelling of 138478094032 in words is "one hundred thirty-eight billion, four hundred seventy-eight million, ninety-four thousand, thirty-two".