21275464014 has 48 divisors (see below), whose sum is σ = 52706958720. Its totient is φ = 6075835920.

The previous prime is 21275464003. The next prime is 21275464027. The reversal of 21275464014 is 41046457212.

21275464014 is a `hidden beast` number, since 2 + 1 + 2 + 7 + 5 + 4 + 640 + 1 + 4 = 666.

It is a super-2 number, since 2×21275464014² (a number of 21 digits) contains 22 as substring.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 21275464014.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 235809 + ... + 313299.

It is an arithmetic number, because the mean of its divisors is an integer number (1098061640).

Almost surely, 2^21275464014 is an apocalyptic number.

21275464014 is an abundant number, since it is smaller than the sum of its proper divisors (31431494706).

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

21275464014 is a wasteful number, since it uses less digits than its factorization.

21275464014 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 79685 (or 79682 counting only the distinct ones).

The product of its (nonzero) digits is 53760, while the sum is 36.

The spelling of 21275464014 in words is "twenty-one billion, two hundred seventy-five million, four hundred sixty-four thousand, fourteen".