57428628860 has 12 divisors (see below), whose sum is σ = 120600120648. Its totient is φ = 22971451536.

The previous prime is 57428628857. The next prime is 57428628871. The reversal of 57428628860 is 6882682475.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 57428628796 and 57428628805.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1435715702 + ... + 1435715741.

It is an arithmetic number, because the mean of its divisors is an integer number (10050010054).

Almost surely, 2^57428628860 is an apocalyptic number.

It is an amenable number.

57428628860 is an abundant number, since it is smaller than the sum of its proper divisors (63171491788).

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

57428628860 is a wasteful number, since it uses less digits than its factorization.

57428628860 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2871431452 (or 2871431450 counting only the distinct ones).

The product of its (nonzero) digits is 10321920, while the sum is 56.

The spelling of 57428628860 in words is "fifty-seven billion, four hundred twenty-eight million, six hundred twenty-eight thousand, eight hundred sixty".