57738853656321 has 4 divisors (see below), whose sum is σ = 76985138208432. Its totient is φ = 38492569104212.

The previous prime is 57738853656299. The next prime is 57738853656331. The reversal of 57738853656321 is 12365635883775.

57738853656321 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 57738853656321 - 2⁶ = 57738853656257 is a prime.

It is not an unprimeable number, because it can be changed into a prime (57738853656331) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9623142276051 + ... + 9623142276056.

It is an arithmetic number, because the mean of its divisors is an integer number (19246284552108).

Almost surely, 2^{57738853656321} is an apocalyptic number.

It is an amenable number.

57738853656321 is a deficient number, since it is larger than the sum of its proper divisors (19246284552111).

57738853656321 is a wasteful number, since it uses less digits than its factorization.

57738853656321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19246284552110.

The product of its digits is 762048000, while the sum is 69.

The spelling of 57738853656321 in words is "fifty-seven trillion, seven hundred thirty-eight billion, eight hundred fifty-three million, six hundred fifty-six thousand, three hundred twenty-one".