138183353381969 has 16 divisors (see below), whose sum is σ = 158610612357120. Its totient is φ = 117928469382480.

The previous prime is 138183353381959. The next prime is 138183353381989. The reversal of 138183353381969 is 969183353381831.

It is a cyclic number.

It is not a de Polignac number, because 138183353381969 - 2⁸ = 138183353381713 is a prime.

It is a super-2 number, since 2×138183353381969² (a number of 29 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (138183353381929) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 25893779 + ... + 30771000.

It is an arithmetic number, because the mean of its divisors is an integer number (9913163272320).

Almost surely, 2^{138183353381969} is an apocalyptic number.

It is an amenable number.

138183353381969 is a deficient number, since it is larger than the sum of its proper divisors (20427258975151).

138183353381969 is a wasteful number, since it uses less digits than its factorization.

138183353381969 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 56666300.

The product of its digits is 302330880, while the sum is 71.

The spelling of 138183353381969 in words is "one hundred thirty-eight trillion, one hundred eighty-three billion, three hundred fifty-three million, three hundred eighty-one thousand, nine hundred sixty-nine".