21088846093 has 4 divisors (see below), whose sum is σ = 24101538400. Its totient is φ = 18076153788.

The previous prime is 21088846061. The next prime is 21088846109. The reversal of 21088846093 is 39064888012.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 21088846093 - 2⁵ = 21088846061 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21088846193) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 1506346143 + ... + 1506346156.

It is an arithmetic number, because the mean of its divisors is an integer number (6025384600).

Almost surely, 2^21088846093 is an apocalyptic number.

It is an amenable number.

21088846093 is a deficient number, since it is larger than the sum of its proper divisors (3012692307).

21088846093 is an equidigital number, since it uses as much as digits as its factorization.

21088846093 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3012692306.

The product of its (nonzero) digits is 663552, while the sum is 49.

The spelling of 21088846093 in words is "twenty-one billion, eighty-eight million, eight hundred forty-six thousand, ninety-three".