57436589709 has 6 divisors (see below), whose sum is σ = 82963962926. Its totient is φ = 38291059800.

The previous prime is 57436589687. The next prime is 57436589767. The reversal of 57436589709 is 90798563475.

57436589709 is a `hidden beast` number, since 5 + 7 + 43 + 6 + 589 + 7 + 0 + 9 = 666.

It can be written as a sum of positive squares in only one way, i.e., 48521075625 + 8915514084 = 220275^2 + 94422^2 .

It is not a de Polignac number, because 57436589709 - 2⁵ = 57436589677 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (57436589009) 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 5 ways as a sum of consecutive naturals, for example, 3190921642 + ... + 3190921659.

Almost surely, 2^57436589709 is an apocalyptic number.

It is an amenable number.

57436589709 is a deficient number, since it is larger than the sum of its proper divisors (25527373217).

57436589709 is a wasteful number, since it uses less digits than its factorization.

57436589709 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6381843307 (or 6381843304 counting only the distinct ones).

The product of its (nonzero) digits is 57153600, while the sum is 63.

The spelling of 57436589709 in words is "fifty-seven billion, four hundred thirty-six million, five hundred eighty-nine thousand, seven hundred nine".