21304676075 has 12 divisors (see below), whose sum is σ = 26420088768. Its totient is φ = 17042263200.

The previous prime is 21304676059. The next prime is 21304676077. The reversal of 21304676075 is 57067640312.

It is not a de Polignac number, because 21304676075 - 2⁴ = 21304676059 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (21304676077) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 327785 + ... + 387365.

It is an arithmetic number, because the mean of its divisors is an integer number (2201674064).

Almost surely, 2^21304676075 is an apocalyptic number.

21304676075 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

21304676075 is a deficient number, since it is larger than the sum of its proper divisors (5115412693).

21304676075 is a wasteful number, since it uses less digits than its factorization.

21304676075 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 73894 (or 73889 counting only the distinct ones).

The product of its (nonzero) digits is 211680, while the sum is 41.

The spelling of 21304676075 in words is "twenty-one billion, three hundred four million, six hundred seventy-six thousand, seventy-five".