21730050510 has 64 divisors (see below), whose sum is σ = 59628248064. Its totient is φ = 4964716800.

The previous prime is 21730050497. The next prime is 21730050527. The reversal of 21730050510 is 1505003712.

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 (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 491415 + ... + 533805.

It is an arithmetic number, because the mean of its divisors is an integer number (931691376).

Almost surely, 2^21730050510 is an apocalyptic number.

21730050510 is an abundant number, since it is smaller than the sum of its proper divisors (37898197554).

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

21730050510 is a wasteful number, since it uses less digits than its factorization.

21730050510 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 44849.

The product of its (nonzero) digits is 1050, while the sum is 24.

The spelling of 21730050510 in words is "twenty-one billion, seven hundred thirty million, fifty thousand, five hundred ten".