138569318822 has 24 divisors (see below), whose sum is σ = 228660544728. Its totient is φ = 62932860320.

The previous prime is 138569318819. The next prime is 138569318917. The reversal of 138569318822 is 228813965831.

It is a happy number.

It is a super-2 number, since 2×138569318822² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

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 in 11 ways as a sum of consecutive naturals, for example, 46058 + ... + 528450.

It is an arithmetic number, because the mean of its divisors is an integer number (9527522697).

Almost surely, 2^138569318822 is an apocalyptic number.

138569318822 is a deficient number, since it is larger than the sum of its proper divisors (90091225906).

138569318822 is a wasteful number, since it uses less digits than its factorization.

138569318822 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 483604 (or 483593 counting only the distinct ones).

The product of its digits is 4976640, while the sum is 56.

The spelling of 138569318822 in words is "one hundred thirty-eight billion, five hundred sixty-nine million, three hundred eighteen thousand, eight hundred twenty-two".