138144111668435 has 16 divisors (see below), whose sum is σ = 168774655721760. Its totient is φ = 108520251901440.

The previous prime is 138144111668389. The next prime is 138144111668449. The reversal of 138144111668435 is 534866111441831.

It is not a de Polignac number, because 138144111668435 - 2⁶ = 138144111668371 is a prime.

It is a super-2 number, since 2×138144111668435² (a number of 29 digits) contains 22 as substring.

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, 381717545 + ... + 382079274.

It is an arithmetic number, because the mean of its divisors is an integer number (10548415982610).

Almost surely, 2^{138144111668435} is an apocalyptic number.

138144111668435 is a deficient number, since it is larger than the sum of its proper divisors (30630544053325).

138144111668435 is an equidigital number, since it uses as much as digits as its factorization.

138144111668435 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 763797478.

The product of its digits is 6635520, while the sum is 56.

The spelling of 138144111668435 in words is "one hundred thirty-eight trillion, one hundred forty-four billion, one hundred eleven million, six hundred sixty-eight thousand, four hundred thirty-five".