21793424510 has 32 divisors (see below), whose sum is σ = 46086237792. Its totient is φ = 7315274880.

The previous prime is 21793424491. The next prime is 21793424591. The reversal of 21793424510 is 1542439712.

It is a Smith number, since the sum of its digits (38) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 7618649 + ... + 7621508.

It is an arithmetic number, because the mean of its divisors is an integer number (1440194931).

Almost surely, 2^21793424510 is an apocalyptic number.

21793424510 is an abundant number, since it is smaller than the sum of its proper divisors (24292813282).

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

21793424510 is a wasteful number, since it uses less digits than its factorization.

21793424510 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15240188.

The product of its (nonzero) digits is 60480, while the sum is 38.

The spelling of 21793424510 in words is "twenty-one billion, seven hundred ninety-three million, four hundred twenty-four thousand, five hundred ten".