138076238280 has 64 divisors (see below), whose sum is σ = 415642570560. Its totient is φ = 36694654208.

The previous prime is 138076238257. The next prime is 138076238281. The reversal of 138076238280 is 82832670831.

It is not an unprimeable number, because it can be changed into a prime (138076238281) 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, 1928382 + ... + 1998701.

It is an arithmetic number, because the mean of its divisors is an integer number (6494415165).

Almost surely, 2^138076238280 is an apocalyptic number.

138076238280 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

138076238280 is an abundant number, since it is smaller than the sum of its proper divisors (277566332280).

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

138076238280 is a wasteful number, since it uses less digits than its factorization.

138076238280 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3927390 (or 3927386 counting only the distinct ones).

The product of its (nonzero) digits is 774144, while the sum is 48.

The spelling of 138076238280 in words is "one hundred thirty-eight billion, seventy-six million, two hundred thirty-eight thousand, two hundred eighty".