123187198768 has 30 divisors (see below), whose sum is σ = 244244036652. Its totient is φ = 60156694080.

The previous prime is 123187198751. The next prime is 123187198777. The reversal of 123187198768 is 867891781321.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 9199438 + ... + 9212818.

Almost surely, 2^123187198768 is an apocalyptic number.

It is an amenable number.

123187198768 is a deficient number, since it is larger than the sum of its proper divisors (121056837884).

123187198768 is an frugal number, since it uses more digits than its factorization.

123187198768 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26813 (or 13426 counting only the distinct ones).

The product of its digits is 8128512, while the sum is 61.

The spelling of 123187198768 in words is "one hundred twenty-three billion, one hundred eighty-seven million, one hundred ninety-eight thousand, seven hundred sixty-eight".