57189374449 has 9 divisors (see below), whose sum is σ = 57860705227. Its totient is φ = 56525752624.

The previous prime is 57189374423. The next prime is 57189374471. The reversal of 57189374449 is 94447398175.

The square root of 57189374449 is 239143.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in only one way, i.e., 10981572849 + 46207801600 = 104793^2 + 214960^2 .

It is not a de Polignac number, because 57189374449 - 2¹⁹ = 57188850161 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (57189374419) by changing a digit.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 21282384 + ... + 21285070.

Almost surely, 2^57189374449 is an apocalyptic number.

57189374449 is the 239143-rd square number.

57189374449 is the 119572-nd centered octagonal number.

It is an amenable number.

57189374449 is a deficient number, since it is larger than the sum of its proper divisors (671330778).

57189374449 is an frugal number, since it uses more digits than its factorization.

57189374449 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5552 (or 2776 counting only the distinct ones).

The product of its digits is 30481920, while the sum is 61.

The spelling of 57189374449 in words is "fifty-seven billion, one hundred eighty-nine million, three hundred seventy-four thousand, four hundred forty-nine".