138789155267 has 4 divisors (see below), whose sum is σ = 158616177456. Its totient is φ = 118962133080.

The previous prime is 138789155261. The next prime is 138789155333. The reversal of 138789155267 is 762551987831.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 138789155267 - 2¹⁴ = 138789138883 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (138789155261) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9913511084 + ... + 9913511097.

It is an arithmetic number, because the mean of its divisors is an integer number (39654044364).

Almost surely, 2^138789155267 is an apocalyptic number.

138789155267 is a deficient number, since it is larger than the sum of its proper divisors (19827022189).

138789155267 is an equidigital number, since it uses as much as digits as its factorization.

138789155267 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19827022188.

The product of its digits is 25401600, while the sum is 62.

The spelling of 138789155267 in words is "one hundred thirty-eight billion, seven hundred eighty-nine million, one hundred fifty-five thousand, two hundred sixty-seven".