138556104869 has 8 divisors (see below), whose sum is σ = 170530590720. Its totient is φ = 109626808176.

The previous prime is 138556104829. The next prime is 138556104893. The reversal of 138556104869 is 968401655831.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 138556104869 - 2¹⁶ = 138556039333 is a prime.

It is a super-2 number, since 2×138556104869² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (138556104829) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 761297189 + ... + 761297370.

It is an arithmetic number, because the mean of its divisors is an integer number (21316323840).

Almost surely, 2^138556104869 is an apocalyptic number.

It is an amenable number.

138556104869 is a deficient number, since it is larger than the sum of its proper divisors (31974485851).

138556104869 is a wasteful number, since it uses less digits than its factorization.

138556104869 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1522594579.

The product of its (nonzero) digits is 6220800, while the sum is 56.

The spelling of 138556104869 in words is "one hundred thirty-eight billion, five hundred fifty-six million, one hundred four thousand, eight hundred sixty-nine".