138144811712 has 14 divisors (see below), whose sum is σ = 274131110868. Its totient is φ = 69072405824.

The previous prime is 138144811699. The next prime is 138144811723. The reversal of 138144811712 is 217118441831.

It is a self number, because there is not a number n which added to its sum of digits gives 138144811712.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1079256278 + ... + 1079256405.

Almost surely, 2^138144811712 is an apocalyptic number.

It is an amenable number.

138144811712 is a deficient number, since it is larger than the sum of its proper divisors (135986299156).

138144811712 is an equidigital number, since it uses as much as digits as its factorization.

138144811712 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2158512695 (or 2158512685 counting only the distinct ones).

The product of its digits is 43008, while the sum is 41.

The spelling of 138144811712 in words is "one hundred thirty-eight billion, one hundred forty-four million, eight hundred eleven thousand, seven hundred twelve".