11993210186908 has 24 divisors (see below), whose sum is σ = 21241436815872. Its totient is φ = 5924231301744.

The previous prime is 11993210186899. The next prime is 11993210186911. The reversal of 11993210186908 is 80968101239911.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 16417491 + ... + 17132437.

It is an arithmetic number, because the mean of its divisors is an integer number (885059867328).

Almost surely, 2^{11993210186908} is an apocalyptic number.

It is an amenable number.

11993210186908 is a deficient number, since it is larger than the sum of its proper divisors (9248226628964).

11993210186908 is a wasteful number, since it uses less digits than its factorization.

11993210186908 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 765561 (or 765559 counting only the distinct ones).

The product of its (nonzero) digits is 1679616, while the sum is 58.

The spelling of 11993210186908 in words is "eleven trillion, nine hundred ninety-three billion, two hundred ten million, one hundred eighty-six thousand, nine hundred eight".