138754701858 has 16 divisors (see below), whose sum is σ = 277516038240. Its totient is φ = 46250461536.

The previous prime is 138754701791. The next prime is 138754701859. The reversal of 138754701858 is 858107457831.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 138754701798 and 138754701807.

It is not an unprimeable number, because it can be changed into a prime (138754701859) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 19878 + ... + 527166.

It is an arithmetic number, because the mean of its divisors is an integer number (17344752390).

Almost surely, 2^138754701858 is an apocalyptic number.

138754701858 is an abundant number, since it is smaller than the sum of its proper divisors (138761336382).

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

138754701858 is a wasteful number, since it uses less digits than its factorization.

138754701858 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 552881.

The product of its (nonzero) digits is 7526400, while the sum is 57.

The spelling of 138754701858 in words is "one hundred thirty-eight billion, seven hundred fifty-four million, seven hundred one thousand, eight hundred fifty-eight".