2138127879518 has 8 divisors (see below), whose sum is σ = 3210339213720. Its totient is φ = 1068014808280.

The previous prime is 2138127879509. The next prime is 2138127879533. The reversal of 2138127879518 is 8159787218312.

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

It is a congruent number.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 524563193 + ... + 524567268.

It is an arithmetic number, because the mean of its divisors is an integer number (401292401715).

Almost surely, 2^{2138127879518} is an apocalyptic number.

2138127879518 is a deficient number, since it is larger than the sum of its proper divisors (1072211334202).

2138127879518 is a wasteful number, since it uses less digits than its factorization.

2138127879518 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1049131482.

The product of its digits is 13547520, while the sum is 62.

The spelling of 2138127879518 in words is "two trillion, one hundred thirty-eight billion, one hundred twenty-seven million, eight hundred seventy-nine thousand, five hundred eighteen".