21473703263682 has 48 divisors (see below), whose sum is σ = 48550485941568. Its totient is φ = 6846512592480.

The previous prime is 21473703263591. The next prime is 21473703263707. The reversal of 21473703263682 is 28636230737412.

21473703263682 is a `hidden beast` number, since 2 + 1 + 4 + 7 + 370 + 3 + 263 + 6 + 8 + 2 = 666.

It is a super-3 number, since 3×21473703263682³ (a number of 41 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

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, 16020457 + ... + 17309027.

It is an arithmetic number, because the mean of its divisors is an integer number (1011468457116).

Almost surely, 2^{21473703263682} is an apocalyptic number.

21473703263682 is an abundant number, since it is smaller than the sum of its proper divisors (27076782677886).

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

21473703263682 is a wasteful number, since it uses less digits than its factorization.

21473703263682 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1328855 (or 1328852 counting only the distinct ones).

The product of its (nonzero) digits is 12192768, while the sum is 54.

The spelling of 21473703263682 in words is "twenty-one trillion, four hundred seventy-three billion, seven hundred three million, two hundred sixty-three thousand, six hundred eighty-two".