57384436789 has 2 divisors, whose sum is σ = 57384436790. Its totient is φ = 57384436788.

The previous prime is 57384436771. The next prime is 57384436843. The reversal of 57384436789 is 98763448375.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 57355460100 + 28976689 = 239490^2 + 5383^2 .

It is a cyclic number.

It is not a de Polignac number, because 57384436789 - 2⁵ = 57384436757 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 57384436789.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (57384436189) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 28692218394 + 28692218395.

It is an arithmetic number, because the mean of its divisors is an integer number (28692218395).

Almost surely, 2^57384436789 is an apocalyptic number.

It is an amenable number.

57384436789 is a deficient number, since it is larger than the sum of its proper divisors (1).

57384436789 is an equidigital number, since it uses as much as digits as its factorization.

57384436789 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 121927680, while the sum is 64.

The spelling of 57384436789 in words is "fifty-seven billion, three hundred eighty-four million, four hundred thirty-six thousand, seven hundred eighty-nine".