21714607204 has 24 divisors (see below), whose sum is σ = 38135319768. Its totient is φ = 10818846720.

The previous prime is 21714607147. The next prime is 21714607207. The reversal of 21714607204 is 40270641712.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 4603351104 + 17111256100 = 67848^2 + 130810^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 21714607204.

It is not an unprimeable number, because it can be changed into a prime (21714607207) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2335044 + ... + 2344324.

It is an arithmetic number, because the mean of its divisors is an integer number (1588971657).

Almost surely, 2^21714607204 is an apocalyptic number.

It is an amenable number.

21714607204 is a deficient number, since it is larger than the sum of its proper divisors (16420712564).

21714607204 is a wasteful number, since it uses less digits than its factorization.

21714607204 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11295 (or 11293 counting only the distinct ones).

The product of its (nonzero) digits is 18816, while the sum is 34.

The spelling of 21714607204 in words is "twenty-one billion, seven hundred fourteen million, six hundred seven thousand, two hundred four".