57431765455321 has 8 divisors (see below), whose sum is σ = 57689764428800. Its totient is φ = 57173770566432.

The previous prime is 57431765455303. The next prime is 57431765455373. The reversal of 57431765455321 is 12355456713475.

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

It is a cyclic number.

It is not a de Polignac number, because 57431765455321 - 2²³ = 57431757066713 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (57431765455921) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 29162416 + ... + 31069438.

It is an arithmetic number, because the mean of its divisors is an integer number (7211220553600).

Almost surely, 2^{57431765455321} is an apocalyptic number.

It is an amenable number.

57431765455321 is a deficient number, since it is larger than the sum of its proper divisors (257998973479).

57431765455321 is a wasteful number, since it uses less digits than its factorization.

57431765455321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2042295.

The product of its digits is 52920000, while the sum is 58.

The spelling of 57431765455321 in words is "fifty-seven trillion, four hundred thirty-one billion, seven hundred sixty-five million, four hundred fifty-five thousand, three hundred twenty-one".