21114873512 has 16 divisors (see below), whose sum is σ = 40867497600. Its totient is φ = 10216874160.

The previous prime is 21114873491. The next prime is 21114873557. The reversal of 21114873512 is 21537841112.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 42570062 + ... + 42570557.

It is an arithmetic number, because the mean of its divisors is an integer number (2554218600).

Almost surely, 2^21114873512 is an apocalyptic number.

It is an amenable number.

21114873512 is a deficient number, since it is larger than the sum of its proper divisors (19752624088).

21114873512 is a wasteful number, since it uses less digits than its factorization.

21114873512 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 85140656 (or 85140652 counting only the distinct ones).

The product of its digits is 13440, while the sum is 35.

The spelling of 21114873512 in words is "twenty-one billion, one hundred fourteen million, eight hundred seventy-three thousand, five hundred twelve".