21323066486 has 8 divisors (see below), whose sum is σ = 32389468320. Its totient is φ = 10526577048.

The previous prime is 21323066461. The next prime is 21323066491. The reversal of 21323066486 is 68466032312.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 67477901 + ... + 67478216.

It is an arithmetic number, because the mean of its divisors is an integer number (4048683540).

Almost surely, 2^21323066486 is an apocalyptic number.

21323066486 is a deficient number, since it is larger than the sum of its proper divisors (11066401834).

21323066486 is a wasteful number, since it uses less digits than its factorization.

21323066486 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 134956198.

The product of its (nonzero) digits is 248832, while the sum is 41.

Adding to 21323066486 its reverse (68466032312), we get a palindrome (89789098798).

The spelling of 21323066486 in words is "twenty-one billion, three hundred twenty-three million, sixty-six thousand, four hundred eighty-six".