27464754621 has 4 divisors (see below), whose sum is σ = 36619672832. Its totient is φ = 18309836412.

The previous prime is 27464754523. The next prime is 27464754623. The reversal of 27464754621 is 12645746472.

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 27464754621 - 2²⁹ = 26927883709 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 (27464754623) by changing a digit.

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, 4577459101 + ... + 4577459106.

It is an arithmetic number, because the mean of its divisors is an integer number (9154918208).

Almost surely, 2^27464754621 is an apocalyptic number.

It is an amenable number.

27464754621 is a deficient number, since it is larger than the sum of its proper divisors (9154918211).

27464754621 is an equidigital number, since it uses as much as digits as its factorization.

27464754621 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9154918210.

The product of its digits is 2257920, while the sum is 48.

The spelling of 27464754621 in words is "twenty-seven billion, four hundred sixty-four million, seven hundred fifty-four thousand, six hundred twenty-one".