57428217812 has 48 divisors (see below), whose sum is σ = 116519534208. Its totient is φ = 24258057600.

The previous prime is 57428217811. The next prime is 57428217823. The reversal of 57428217812 is 21871282475.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (57428217811) 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 15 ways as a sum of consecutive naturals, for example, 541562 + ... + 638862.

It is an arithmetic number, because the mean of its divisors is an integer number (2427490296).

Almost surely, 2^57428217812 is an apocalyptic number.

It is an amenable number.

57428217812 is an abundant number, since it is smaller than the sum of its proper divisors (59091316396).

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

57428217812 is a wasteful number, since it uses less digits than its factorization.

57428217812 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 97616 (or 97614 counting only the distinct ones).

The product of its digits is 501760, while the sum is 47.

The spelling of 57428217812 in words is "fifty-seven billion, four hundred twenty-eight million, two hundred seventeen thousand, eight hundred twelve".