21748886914 has 16 divisors (see below), whose sum is σ = 33363400320. Its totient is φ = 10630479600.

The previous prime is 21748886909. The next prime is 21748886941. The reversal of 21748886914 is 41968884712.

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, 665484 + ... + 697399.

It is an arithmetic number, because the mean of its divisors is an integer number (2085212520).

Almost surely, 2^21748886914 is an apocalyptic number.

21748886914 is a deficient number, since it is larger than the sum of its proper divisors (11614513406).

21748886914 is a wasteful number, since it uses less digits than its factorization.

21748886914 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1363065.

The product of its digits is 6193152, while the sum is 58.

The spelling of 21748886914 in words is "twenty-one billion, seven hundred forty-eight million, eight hundred eighty-six thousand, nine hundred fourteen".