21433475104 has 24 divisors (see below), whose sum is σ = 42775201980. Its totient is φ = 10569931776.

The previous prime is 21433475099. The next prime is 21433475153. The reversal of 21433475104 is 40157433412.

It can be written as a sum of positive squares in 2 ways, for example, as 21415395600 + 18079504 = 146340^2 + 4252^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 21433475104.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4585309 + ... + 4589980.

Almost surely, 2^21433475104 is an apocalyptic number.

It is an amenable number.

21433475104 is a deficient number, since it is larger than the sum of its proper divisors (21341726876).

21433475104 is an equidigital number, since it uses as much as digits as its factorization.

21433475104 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9175372 (or 9175364 counting only the distinct ones).

The product of its (nonzero) digits is 40320, while the sum is 34.

The spelling of 21433475104 in words is "twenty-one billion, four hundred thirty-three million, four hundred seventy-five thousand, one hundred four".