57019638828 has 48 divisors (see below), whose sum is σ = 137479071744. Its totient is φ = 18374488320.

The previous prime is 57019638787. The next prime is 57019638911. The reversal of 57019638828 is 82883691075.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 285001 + ... + 441887.

It is an arithmetic number, because the mean of its divisors is an integer number (2864147328).

Almost surely, 2^57019638828 is an apocalyptic number.

It is an amenable number.

57019638828 is an abundant number, since it is smaller than the sum of its proper divisors (80459432916).

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

57019638828 is a wasteful number, since it uses less digits than its factorization.

57019638828 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 157902 (or 157900 counting only the distinct ones).

The product of its (nonzero) digits is 5806080, while the sum is 57.

The spelling of 57019638828 in words is "fifty-seven billion, nineteen million, six hundred thirty-eight thousand, eight hundred twenty-eight".