2138554888382 has 24 divisors (see below), whose sum is σ = 3526041603000. Its totient is φ = 972049137840.

The previous prime is 2138554888373. The next prime is 2138554888403. The reversal of 2138554888382 is 2838884558312.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 17884469 + ... + 18003647.

It is an arithmetic number, because the mean of its divisors is an integer number (146918400125).

Almost surely, 2^{2138554888382} is an apocalyptic number.

2138554888382 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

2138554888382 is a deficient number, since it is larger than the sum of its proper divisors (1387486714618).

2138554888382 is a wasteful number, since it uses less digits than its factorization.

2138554888382 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 193352 (or 193341 counting only the distinct ones).

The product of its digits is 117964800, while the sum is 65.

The spelling of 2138554888382 in words is "two trillion, one hundred thirty-eight billion, five hundred fifty-four million, eight hundred eighty-eight thousand, three hundred eighty-two".