138823275757873 has 8 divisors (see below), whose sum is σ = 158655626361792. Its totient is φ = 118991038670736.

The previous prime is 138823275757853. The next prime is 138823275757921. The reversal of 138823275757873 is 378757572328831.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-138823275757873 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 138823275757873.

It is not an unprimeable number, because it can be changed into a prime (138823275757823) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 25742290 + ... + 30664507.

It is an arithmetic number, because the mean of its divisors is an integer number (19831953295224).

Almost surely, 2^{138823275757873} is an apocalyptic number.

It is an amenable number.

138823275757873 is a deficient number, since it is larger than the sum of its proper divisors (19832350603919).

138823275757873 is an equidigital number, since it uses as much as digits as its factorization.

138823275757873 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 56758391.

The product of its digits is 3319142400, while the sum is 76.

The spelling of 138823275757873 in words is "one hundred thirty-eight trillion, eight hundred twenty-three billion, two hundred seventy-five million, seven hundred fifty-seven thousand, eight hundred seventy-three".