138059290581 has 8 divisors (see below), whose sum is σ = 184281120384. Its totient is φ = 91938493920.

The previous prime is 138059290559. The next prime is 138059290591. The reversal of 138059290581 is 185092950831.

138059290581 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 138059290581 - 2⁹ = 138059290069 is a prime.

It is a super-2 number, since 2×138059290581² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (138059290591) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 25255096 + ... + 25260561.

It is an arithmetic number, because the mean of its divisors is an integer number (23035140048).

Almost surely, 2^138059290581 is an apocalyptic number.

It is an amenable number.

138059290581 is a deficient number, since it is larger than the sum of its proper divisors (46221829803).

138059290581 is an equidigital number, since it uses as much as digits as its factorization.

138059290581 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 50516571.

The product of its (nonzero) digits is 777600, while the sum is 51.

The spelling of 138059290581 in words is "one hundred thirty-eight billion, fifty-nine million, two hundred ninety thousand, five hundred eighty-one".