138724525344055 has 16 divisors (see below), whose sum is σ = 192212125842240. Its totient is φ = 94144714693632.

The previous prime is 138724525344049. The next prime is 138724525344071. The reversal of 138724525344055 is 550443525427831.

It is a cyclic number.

It is not a de Polignac number, because 138724525344055 - 2⁵ = 138724525344023 is a prime.

It is a super-2 number, since 2×138724525344055² (a number of 29 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 20430707260 + ... + 20430714049.

It is an arithmetic number, because the mean of its divisors is an integer number (12013257865140).

Almost surely, 2^{138724525344055} is an apocalyptic number.

138724525344055 is a deficient number, since it is larger than the sum of its proper divisors (53487600498185).

138724525344055 is an equidigital number, since it uses as much as digits as its factorization.

138724525344055 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 40861421418.

The product of its (nonzero) digits is 80640000, while the sum is 58.

The spelling of 138724525344055 in words is "one hundred thirty-eight trillion, seven hundred twenty-four billion, five hundred twenty-five million, three hundred forty-four thousand, fifty-five".