138271282823 has 8 divisors (see below), whose sum is σ = 139546686816. Its totient is φ = 136996787200.

The previous prime is 138271282783. The next prime is 138271282843. The reversal of 138271282823 is 328282172831.

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-138271282823 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (138271282843) 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, 80663 + ... + 532023.

It is an arithmetic number, because the mean of its divisors is an integer number (17443335852).

Almost surely, 2^138271282823 is an apocalyptic number.

138271282823 is a deficient number, since it is larger than the sum of its proper divisors (1275403993).

138271282823 is a wasteful number, since it uses less digits than its factorization.

138271282823 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 454185.

The product of its digits is 516096, while the sum is 47.

The spelling of 138271282823 in words is "one hundred thirty-eight billion, two hundred seventy-one million, two hundred eighty-two thousand, eight hundred twenty-three".