138541756119925 has 48 divisors (see below), whose sum is σ = 179411896492992. Its totient is φ = 106024468492800.

The previous prime is 138541756119913. The next prime is 138541756119929. The reversal of 138541756119925 is 529911657145831.

It is not a de Polignac number, because 138541756119925 - 2¹⁹ = 138541755595637 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (67).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (138541756119929) by changing a digit.

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 47 ways as a sum of consecutive naturals, for example, 30143634 + ... + 34434316.

It is an arithmetic number, because the mean of its divisors is an integer number (3737747843604).

Almost surely, 2^{138541756119925} is an apocalyptic number.

It is an amenable number.

138541756119925 is a deficient number, since it is larger than the sum of its proper divisors (40870140373067).

138541756119925 is a wasteful number, since it uses less digits than its factorization.

138541756119925 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4291318 (or 4291313 counting only the distinct ones).

The product of its digits is 81648000, while the sum is 67.

The spelling of 138541756119925 in words is "one hundred thirty-eight trillion, five hundred forty-one billion, seven hundred fifty-six million, one hundred nineteen thousand, nine hundred twenty-five".