138819027190 has 8 divisors (see below), whose sum is σ = 249874248960. Its totient is φ = 55527610872.

The previous prime is 138819027187. The next prime is 138819027199. The reversal of 138819027190 is 91720918831.

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

It is a super-2 number, since 2×138819027190² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (138819027199) 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 3 ways as a sum of consecutive naturals, for example, 6940951350 + ... + 6940951369.

It is an arithmetic number, because the mean of its divisors is an integer number (31234281120).

Almost surely, 2^138819027190 is an apocalyptic number.

138819027190 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

138819027190 is a deficient number, since it is larger than the sum of its proper divisors (111055221770).

138819027190 is a wasteful number, since it uses less digits than its factorization.

138819027190 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13881902726.

The product of its (nonzero) digits is 217728, while the sum is 49.

The spelling of 138819027190 in words is "one hundred thirty-eight billion, eight hundred nineteen million, twenty-seven thousand, one hundred ninety".