57434440856 has 16 divisors (see below), whose sum is σ = 115973390400. Its totient is φ = 26508203424.

The previous prime is 57434440849. The next prime is 57434440913. The reversal of 57434440856 is 65804443475.

It is a congruent number.

It is an unprimeable number.

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, 276127016 + ... + 276127223.

It is an arithmetic number, because the mean of its divisors is an integer number (7248336900).

Almost surely, 2^57434440856 is an apocalyptic number.

It is an amenable number.

57434440856 is an abundant number, since it is smaller than the sum of its proper divisors (58538949544).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

57434440856 is a wasteful number, since it uses less digits than its factorization.

57434440856 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 552254258 (or 552254254 counting only the distinct ones).

The product of its (nonzero) digits is 6451200, while the sum is 50.

The spelling of 57434440856 in words is "fifty-seven billion, four hundred thirty-four million, four hundred forty thousand, eight hundred fifty-six".