21322007462 has 32 divisors (see below), whose sum is σ = 37078390272. Its totient is φ = 9006583104.

The previous prime is 21322007459. The next prime is 21322007479. The reversal of 21322007462 is 26470022312.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1656383 + ... + 1669205.

It is an arithmetic number, because the mean of its divisors is an integer number (1158699696).

Almost surely, 2^21322007462 is an apocalyptic number.

21322007462 is a deficient number, since it is larger than the sum of its proper divisors (15756382810).

21322007462 is a wasteful number, since it uses less digits than its factorization.

21322007462 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14532.

The product of its (nonzero) digits is 8064, while the sum is 29.

Adding to 21322007462 its reverse (26470022312), we get a palindrome (47792029774).

The spelling of 21322007462 in words is "twenty-one billion, three hundred twenty-two million, seven thousand, four hundred sixty-two".