138873094829 has 4 divisors (see below), whose sum is σ = 158712108384. Its totient is φ = 119034081276.

The previous prime is 138873094813. The next prime is 138873094847. The reversal of 138873094829 is 928490378831.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 138873094829 - 2⁴ = 138873094813 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (138873094859) 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, 9919506767 + ... + 9919506780.

It is an arithmetic number, because the mean of its divisors is an integer number (39678027096).

Almost surely, 2^138873094829 is an apocalyptic number.

It is an amenable number.

138873094829 is a deficient number, since it is larger than the sum of its proper divisors (19839013555).

138873094829 is an equidigital number, since it uses as much as digits as its factorization.

138873094829 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19839013554.

The product of its (nonzero) digits is 20901888, while the sum is 62.

The spelling of 138873094829 in words is "one hundred thirty-eight billion, eight hundred seventy-three million, ninety-four thousand, eight hundred twenty-nine".