138331950195 has 8 divisors (see below), whose sum is σ = 221331120336. Its totient is φ = 73777040096.

The previous prime is 138331950179. The next prime is 138331950247. The reversal of 138331950195 is 591059133831.

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

It is a cyclic number.

It is not a de Polignac number, because 138331950195 - 2⁴ = 138331950179 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4611064992 + ... + 4611065021.

It is an arithmetic number, because the mean of its divisors is an integer number (27666390042).

Almost surely, 2^138331950195 is an apocalyptic number.

138331950195 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

138331950195 is a deficient number, since it is larger than the sum of its proper divisors (82999170141).

138331950195 is an equidigital number, since it uses as much as digits as its factorization.

138331950195 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9222130021.

The product of its (nonzero) digits is 437400, while the sum is 48.

The spelling of 138331950195 in words is "one hundred thirty-eight billion, three hundred thirty-one million, nine hundred fifty thousand, one hundred ninety-five".