57321342277921 has 16 divisors (see below), whose sum is σ = 57854702352384. Its totient is φ = 56789712693504.

The previous prime is 57321342277891. The next prime is 57321342277961. The reversal of 57321342277921 is 12977224312375.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-57321342277921 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (57321342277961) 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 15 ways as a sum of consecutive naturals, for example, 245451816 + ... + 245685238.

It is an arithmetic number, because the mean of its divisors is an integer number (3615918897024).

Almost surely, 2^{57321342277921} is an apocalyptic number.

It is an amenable number.

57321342277921 is a deficient number, since it is larger than the sum of its proper divisors (533360074463).

57321342277921 is a wasteful number, since it uses less digits than its factorization.

57321342277921 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 237120.

The product of its digits is 8890560, while the sum is 55.

The spelling of 57321342277921 in words is "fifty-seven trillion, three hundred twenty-one billion, three hundred forty-two million, two hundred seventy-seven thousand, nine hundred twenty-one".