138678751000 has 32 divisors (see below), whose sum is σ = 324508279680. Its totient is φ = 55471500000.

The previous prime is 138678750997. The next prime is 138678751031. The reversal of 138678751000 is 157876831.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 69338376 + ... + 69340375.

It is an arithmetic number, because the mean of its divisors is an integer number (10140883740).

Almost surely, 2^138678751000 is an apocalyptic number.

138678751000 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

138678751000 is an abundant number, since it is smaller than the sum of its proper divisors (185829528680).

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

138678751000 is a wasteful number, since it uses less digits than its factorization.

138678751000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 138678772 (or 138678758 counting only the distinct ones).

The product of its (nonzero) digits is 282240, while the sum is 46.

The spelling of 138678751000 in words is "one hundred thirty-eight billion, six hundred seventy-eight million, seven hundred fifty-one thousand".