138759714834 has 64 divisors (see below), whose sum is σ = 314956978560. Its totient is φ = 40401884160.

The previous prime is 138759714827. The next prime is 138759714887. The reversal of 138759714834 is 438417957831.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1252504 + ... + 1358780.

It is an arithmetic number, because the mean of its divisors is an integer number (4921202790).

Almost surely, 2^138759714834 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 138759714834, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (157478489280).

138759714834 is an abundant number, since it is smaller than the sum of its proper divisors (176197263726).

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

138759714834 is a wasteful number, since it uses less digits than its factorization.

138759714834 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 107195.

The product of its digits is 20321280, while the sum is 60.

The spelling of 138759714834 in words is "one hundred thirty-eight billion, seven hundred fifty-nine million, seven hundred fourteen thousand, eight hundred thirty-four".