21250632304 has 40 divisors (see below), whose sum is σ = 44941909248. Its totient is φ = 9653830080.

The previous prime is 21250632287. The next prime is 21250632307. The reversal of 21250632304 is 40323605212.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21250632307) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 280729 + ... + 348295.

Almost surely, 2^21250632304 is an apocalyptic number.

It is an amenable number.

21250632304 is an abundant number, since it is smaller than the sum of its proper divisors (23691276944).

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

21250632304 is a wasteful number, since it uses less digits than its factorization.

21250632304 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 69373 (or 69367 counting only the distinct ones).

The product of its (nonzero) digits is 8640, while the sum is 28.

The spelling of 21250632304 in words is "twenty-one billion, two hundred fifty million, six hundred thirty-two thousand, three hundred four".