21476636704233 has 12 divisors (see below), whose sum is σ = 31137131284740. Its totient is φ = 14264531935776.

The previous prime is 21476636704207. The next prime is 21476636704273. The reversal of 21476636704233 is 33240763667412.

21476636704233 is a `hidden beast` number, since 2 + 1 + 47 + 6 + 6 + 367 + 0 + 4 + 233 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 4521372827904 + 16955263876329 = 2126352^2 + 4117677^2 .

It is not a de Polignac number, because 21476636704233 - 2⁹ = 21476636703721 is a prime.

It is a super-2 number, since 2×21476636704233² (a number of 27 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 21476636704233.

It is not an unprimeable number, because it can be changed into a prime (21476636704273) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 4435486366 + ... + 4435491207.

It is an arithmetic number, because the mean of its divisors is an integer number (2594760940395).

Almost surely, 2^{21476636704233} is an apocalyptic number.

It is an amenable number.

21476636704233 is a deficient number, since it is larger than the sum of its proper divisors (9660494580507).

21476636704233 is a wasteful number, since it uses less digits than its factorization.

21476636704233 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8870977848 (or 8870977845 counting only the distinct ones).

The product of its (nonzero) digits is 18289152, while the sum is 54.

The spelling of 21476636704233 in words is "twenty-one trillion, four hundred seventy-six billion, six hundred thirty-six million, seven hundred four thousand, two hundred thirty-three".