21476574453452 has 24 divisors (see below), whose sum is σ = 37924260170496. Its totient is φ = 10641109909248.

The previous prime is 21476574453413. The next prime is 21476574453539. The reversal of 21476574453452 is 25435447567412.

It is a happy number.

It is a super-2 number, since 2×21476574453452² (a number of 27 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 21476574453391 and 21476574453400.

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, 2552108 + ... + 7033235.

It is an arithmetic number, because the mean of its divisors is an integer number (1580177507104).

Almost surely, 2^{21476574453452} is an apocalyptic number.

It is an amenable number.

21476574453452 is a deficient number, since it is larger than the sum of its proper divisors (16447685717044).

21476574453452 is a wasteful number, since it uses less digits than its factorization.

21476574453452 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9590417 (or 9590415 counting only the distinct ones).

The product of its digits is 112896000, while the sum is 59.

The spelling of 21476574453452 in words is "twenty-one trillion, four hundred seventy-six billion, five hundred seventy-four million, four hundred fifty-three thousand, four hundred fifty-two".