138411971607 has 32 divisors (see below), whose sum is σ = 237013152768. Its totient is φ = 69834226176.

The previous prime is 138411971597. The next prime is 138411971683. The reversal of 138411971607 is 706179114831.

138411971607 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 138411971607 - 2⁷ = 138411971479 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (138411971807) 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 31 ways as a sum of consecutive naturals, for example, 11015538 + ... + 11028095.

It is an arithmetic number, because the mean of its divisors is an integer number (7406661024).

Almost surely, 2^138411971607 is an apocalyptic number.

138411971607 is a deficient number, since it is larger than the sum of its proper divisors (98601181161).

138411971607 is a wasteful number, since it uses less digits than its factorization.

138411971607 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22043679.

The product of its (nonzero) digits is 254016, while the sum is 48.

The spelling of 138411971607 in words is "one hundred thirty-eight billion, four hundred eleven million, nine hundred seventy-one thousand, six hundred seven".