614664544321 has 4 divisors (see below), whose sum is σ = 617372317872. Its totient is φ = 611956770772.

The previous prime is 614664544309. The next prime is 614664544327. The reversal of 614664544321 is 123445466416.

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 a cyclic number.

It is not a de Polignac number, because 614664544321 - 2⁵ = 614664544289 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (614664544327) 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, 1353886435 + ... + 1353886888.

It is an arithmetic number, because the mean of its divisors is an integer number (154343079468).

Almost surely, 2^614664544321 is an apocalyptic number.

It is an amenable number.

614664544321 is a deficient number, since it is larger than the sum of its proper divisors (2707773551).

614664544321 is a wasteful number, since it uses less digits than its factorization.

614664544321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2707773550.

The product of its digits is 1658880, while the sum is 46.

The spelling of 614664544321 in words is "six hundred fourteen billion, six hundred sixty-four million, five hundred forty-four thousand, three hundred twenty-one".