1238812709988 has 24 divisors (see below), whose sum is σ = 3303500560192. Its totient is φ = 353946488544.

The previous prime is 1238812709929. The next prime is 1238812709999. The reversal of 1238812709988 is 8899072188321.

It is a Smith number, since the sum of its digits (66) coincides with the sum of the digits of its prime factors.

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, 7373885095 + ... + 7373885262.

Almost surely, 2^{1238812709988} is an apocalyptic number.

It is an amenable number.

1238812709988 is an abundant number, since it is smaller than the sum of its proper divisors (2064687850204).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1238812709988 is a wasteful number, since it uses less digits than its factorization.

1238812709988 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14747770371 (or 14747770369 counting only the distinct ones).

The product of its (nonzero) digits is 27869184, while the sum is 66.

The spelling of 1238812709988 in words is "one trillion, two hundred thirty-eight billion, eight hundred twelve million, seven hundred nine thousand, nine hundred eighty-eight".