21106470036 has 36 divisors (see below), whose sum is σ = 51976885632. Its totient is φ = 6665199696.

The previous prime is 21106470031. The next prime is 21106470043. The reversal of 21106470036 is 63007460112.

It is a junction number, because it is equal to n+sod(n) for n = 21106469985 and 21106470012.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21106470031) 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, 2431780 + ... + 2440443.

Almost surely, 2^21106470036 is an apocalyptic number.

It is an amenable number.

21106470036 is an abundant number, since it is smaller than the sum of its proper divisors (30870415596).

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

21106470036 is a wasteful number, since it uses less digits than its factorization.

21106470036 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4872268 (or 4872247 counting only the distinct ones).

The product of its (nonzero) digits is 6048, while the sum is 30.

The spelling of 21106470036 in words is "twenty-one billion, one hundred six million, four hundred seventy thousand, thirty-six".