1138887523988 has 48 divisors (see below), whose sum is σ = 2137566816000. Its totient is φ = 529023605760.

The previous prime is 1138887523979. The next prime is 1138887523993. The reversal of 1138887523988 is 8893257888311.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 21993968 + ... + 22045688.

It is an arithmetic number, because the mean of its divisors is an integer number (44532642000).

Almost surely, 2^{1138887523988} is an apocalyptic number.

It is an amenable number.

1138887523988 is a deficient number, since it is larger than the sum of its proper divisors (998679292012).

1138887523988 is a wasteful number, since it uses less digits than its factorization.

1138887523988 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 55920 (or 55918 counting only the distinct ones).

The product of its digits is 185794560, while the sum is 71.

The spelling of 1138887523988 in words is "one trillion, one hundred thirty-eight billion, eight hundred eighty-seven million, five hundred twenty-three thousand, nine hundred eighty-eight".