138787614798 has 96 divisors (see below), whose sum is σ = 329646412800. Its totient is φ = 38831849280.

The previous prime is 138787614793. The next prime is 138787614803. The reversal of 138787614798 is 897416787831.

It is an interprime number because it is at equal distance from previous prime (138787614793) and next prime (138787614803).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (138787614793) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 3087915 + ... + 3132537.

It is an arithmetic number, because the mean of its divisors is an integer number (3433816800).

Almost surely, 2^138787614798 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 138787614798, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (164823206400).

138787614798 is an abundant number, since it is smaller than the sum of its proper divisors (190858798002).

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

138787614798 is a wasteful number, since it uses less digits than its factorization.

138787614798 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 44862 (or 44855 counting only the distinct ones).

The product of its digits is 113799168, while the sum is 69.

The spelling of 138787614798 in words is "one hundred thirty-eight billion, seven hundred eighty-seven million, six hundred fourteen thousand, seven hundred ninety-eight".