21294716962 has 8 divisors (see below), whose sum is σ = 32027712156. Its totient is φ = 10618812912.

The previous prime is 21294716959. The next prime is 21294717007. The reversal of 21294716962 is 26961749212.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 20198378641 + 1096338321 = 142121^2 + 33111^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

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, 14271853 + ... + 14273344.

Almost surely, 2^21294716962 is an apocalyptic number.

21294716962 is a deficient number, since it is larger than the sum of its proper divisors (10732995194).

21294716962 is a wasteful number, since it uses less digits than its factorization.

21294716962 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28545572.

The product of its digits is 653184, while the sum is 49.

The spelling of 21294716962 in words is "twenty-one billion, two hundred ninety-four million, seven hundred sixteen thousand, nine hundred sixty-two".