21468094339749 has 8 divisors (see below), whose sum is σ = 28652836046880. Its totient is φ = 14297707762896.

The previous prime is 21468094339733. The next prime is 21468094339751. The reversal of 21468094339749 is 94793349086412.

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

It is not a de Polignac number, because 21468094339749 - 2⁴ = 21468094339733 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21468094339709) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3588779079 + ... + 3588785060.

It is an arithmetic number, because the mean of its divisors is an integer number (3581604505860).

Almost surely, 2^{21468094339749} is an apocalyptic number.

It is an amenable number.

21468094339749 is a deficient number, since it is larger than the sum of its proper divisors (7184741707131).

21468094339749 is an equidigital number, since it uses as much as digits as its factorization.

21468094339749 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7177565139.

The product of its (nonzero) digits is 282175488, while the sum is 69.

The spelling of 21468094339749 in words is "twenty-one trillion, four hundred sixty-eight billion, ninety-four million, three hundred thirty-nine thousand, seven hundred forty-nine".