21326233485 has 32 divisors (see below), whose sum is σ = 34695850752. Its totient is φ = 11182855680.

The previous prime is 21326233471. The next prime is 21326233501. The reversal of 21326233485 is 58433262312.

It is not a de Polignac number, because 21326233485 - 2⁹ = 21326232973 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 3855792 + ... + 3861318.

It is an arithmetic number, because the mean of its divisors is an integer number (1084245336).

Almost surely, 2^21326233485 is an apocalyptic number.

It is an amenable number.

21326233485 is a deficient number, since it is larger than the sum of its proper divisors (13369617267).

21326233485 is a wasteful number, since it uses less digits than its factorization.

21326233485 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9813.

The product of its digits is 207360, while the sum is 39.

Adding to 21326233485 its reverse (58433262312), we get a palindrome (79759495797).

The spelling of 21326233485 in words is "twenty-one billion, three hundred twenty-six million, two hundred thirty-three thousand, four hundred eighty-five".