1388138188195 has 8 divisors (see below), whose sum is σ = 1817199082800. Its totient is φ = 1009555045920.

The previous prime is 1388138188193. The next prime is 1388138188211. The reversal of 1388138188195 is 5918818318831.

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

It is not a de Polignac number, because 1388138188195 - 2¹ = 1388138188193 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1388138188193) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 12619438020 + ... + 12619438129.

It is an arithmetic number, because the mean of its divisors is an integer number (227149885350).

Almost surely, 2^{1388138188195} is an apocalyptic number.

1388138188195 is a deficient number, since it is larger than the sum of its proper divisors (429060894605).

1388138188195 is a wasteful number, since it uses less digits than its factorization.

1388138188195 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25238876165.

The product of its digits is 13271040, while the sum is 64.

The spelling of 1388138188195 in words is "one trillion, three hundred eighty-eight billion, one hundred thirty-eight million, one hundred eighty-eight thousand, one hundred ninety-five".