138168796269 has 8 divisors (see below), whose sum is σ = 210542927680. Its totient is φ = 78953597856.

The previous prime is 138168796253. The next prime is 138168796273. The reversal of 138168796269 is 962697861831.

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

It is not a de Polignac number, because 138168796269 - 2⁴ = 138168796253 is a prime.

It is a super-2 number, since 2×138168796269² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (138168796229) 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, 3289733224 + ... + 3289733265.

It is an arithmetic number, because the mean of its divisors is an integer number (26317865960).

Almost surely, 2^138168796269 is an apocalyptic number.

It is an amenable number.

138168796269 is a deficient number, since it is larger than the sum of its proper divisors (72374131411).

138168796269 is an equidigital number, since it uses as much as digits as its factorization.

138168796269 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6579466499.

The product of its digits is 47029248, while the sum is 66.

The spelling of 138168796269 in words is "one hundred thirty-eight billion, one hundred sixty-eight million, seven hundred ninety-six thousand, two hundred sixty-nine".