21842096810 has 8 divisors (see below), whose sum is σ = 39315774276. Its totient is φ = 8736838720.

The previous prime is 21842096797. The next prime is 21842096831. The reversal of 21842096810 is 1869024812.

It can be written as a sum of positive squares in 2 ways, for example, as 21429153769 + 412943041 = 146387^2 + 20321^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×21842096810² (a number of 21 digits) contains 22 as substring.

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 3 ways as a sum of consecutive naturals, for example, 1092104831 + ... + 1092104850.

Almost surely, 2^21842096810 is an apocalyptic number.

21842096810 is a deficient number, since it is larger than the sum of its proper divisors (17473677466).

21842096810 is a wasteful number, since it uses less digits than its factorization.

21842096810 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2184209688.

The product of its (nonzero) digits is 55296, while the sum is 41.

The spelling of 21842096810 in words is "twenty-one billion, eight hundred forty-two million, ninety-six thousand, eight hundred ten".