21476636376512 has 56 divisors (see below), whose sum is σ = 42657882877104. Its totient is φ = 10728195858432.

The previous prime is 21476636376499. The next prime is 21476636376599. The reversal of 21476636376512 is 21567363667412.

It is a super-2 number, since 2×21476636376512² (a number of 27 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 825471728 + ... + 825497744.

Almost surely, 2^{21476636376512} is an apocalyptic number.

It is an amenable number.

21476636376512 is a deficient number, since it is larger than the sum of its proper divisors (21181246500592).

21476636376512 is a wasteful number, since it uses less digits than its factorization.

21476636376512 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 37693 (or 37683 counting only the distinct ones).

The product of its digits is 45722880, while the sum is 59.

The spelling of 21476636376512 in words is "twenty-one trillion, four hundred seventy-six billion, six hundred thirty-six million, three hundred seventy-six thousand, five hundred twelve".