138542052521735 has 16 divisors (see below), whose sum is σ = 173479350910464. Its totient is φ = 106014417143712.

The previous prime is 138542052521683. The next prime is 138542052521749. The reversal of 138542052521735 is 537125250245831.

It is a cyclic number.

It is not a de Polignac number, because 138542052521735 - 2⁸ = 138542052521479 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 33515624 + ... + 37421666.

It is an arithmetic number, because the mean of its divisors is an integer number (10842459431904).

Almost surely, 2^{138542052521735} is an apocalyptic number.

138542052521735 is a deficient number, since it is larger than the sum of its proper divisors (34937298388729).

138542052521735 is a wasteful number, since it uses less digits than its factorization.

138542052521735 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4214494.

The product of its (nonzero) digits is 10080000, while the sum is 53.

The spelling of 138542052521735 in words is "one hundred thirty-eight trillion, five hundred forty-two billion, fifty-two million, five hundred twenty-one thousand, seven hundred thirty-five".