57128645653 has 4 divisors (see below), whose sum is σ = 58344148800. Its totient is φ = 55913142508.

The previous prime is 57128645633. The next prime is 57128645669. The reversal of 57128645653 is 35654682175.

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 a de Polignac number, because none of the positive numbers 2^k-57128645653 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 57128645653.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (57128645603) 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, 607751503 + ... + 607751596.

It is an arithmetic number, because the mean of its divisors is an integer number (14586037200).

Almost surely, 2^57128645653 is an apocalyptic number.

It is an amenable number.

57128645653 is a deficient number, since it is larger than the sum of its proper divisors (1215503147).

57128645653 is a wasteful number, since it uses less digits than its factorization.

57128645653 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1215503146.

The product of its digits is 6048000, while the sum is 52.

The spelling of 57128645653 in words is "fifty-seven billion, one hundred twenty-eight million, six hundred forty-five thousand, six hundred fifty-three".