21168789118248 has 64 divisors (see below), whose sum is σ = 55225013276160. Its totient is φ = 6749214143936.

The previous prime is 21168789118237. The next prime is 21168789118283. The reversal of 21168789118248 is 84281198786112.

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, 14186311 + ... + 15607337.

It is an arithmetic number, because the mean of its divisors is an integer number (862890832440).

Almost surely, 2^{21168789118248} is an apocalyptic number.

It is an amenable number.

21168789118248 is an abundant number, since it is smaller than the sum of its proper divisors (34056224157912).

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

21168789118248 is a wasteful number, since it uses less digits than its factorization.

21168789118248 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1448046 (or 1448042 counting only the distinct ones).

The product of its digits is 24772608, while the sum is 66.

The spelling of 21168789118248 in words is "twenty-one trillion, one hundred sixty-eight billion, seven hundred eighty-nine million, one hundred eighteen thousand, two hundred forty-eight".