138468869548 has 12 divisors (see below), whose sum is σ = 246292989712. Its totient is φ = 68099443920.

The previous prime is 138468869527. The next prime is 138468869549. The reversal of 138468869548 is 845968864831.

It is not an unprimeable number, because it can be changed into a prime (138468869549) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 283747440 + ... + 283747927.

Almost surely, 2^138468869548 is an apocalyptic number.

It is an amenable number.

138468869548 is a deficient number, since it is larger than the sum of its proper divisors (107824120164).

138468869548 is a wasteful number, since it uses less digits than its factorization.

138468869548 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 567495432 (or 567495430 counting only the distinct ones).

The product of its digits is 318504960, while the sum is 70.

It can be divided in two parts, 138468 and 869548, that added together give a square (1008016 = 1004²).

The spelling of 138468869548 in words is "one hundred thirty-eight billion, four hundred sixty-eight million, eight hundred sixty-nine thousand, five hundred forty-eight".