56570742428 has 12 divisors (see below), whose sum is σ = 99060186120. Its totient is φ = 28267832112.

The previous prime is 56570742409. The next prime is 56570742521. The reversal of 56570742428 is 82424707565.

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, 4377518 + ... + 4390421.

It is an arithmetic number, because the mean of its divisors is an integer number (8255015510).

Almost surely, 2^56570742428 is an apocalyptic number.

It is an amenable number.

56570742428 is a deficient number, since it is larger than the sum of its proper divisors (42489443692).

56570742428 is a wasteful number, since it uses less digits than its factorization.

56570742428 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8769556 (or 8769554 counting only the distinct ones).

The product of its (nonzero) digits is 3763200, while the sum is 50.

The spelling of 56570742428 in words is "fifty-six billion, five hundred seventy million, seven hundred forty-two thousand, four hundred twenty-eight".