57128654850 has 24 divisors (see below), whose sum is σ = 141679064400. Its totient is φ = 15234307920.

The previous prime is 57128654767. The next prime is 57128654861. The reversal of 57128654850 is 5845682175.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 57128654793 and 57128654802.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 190428700 + ... + 190428999.

It is an arithmetic number, because the mean of its divisors is an integer number (5903294350).

Almost surely, 2^57128654850 is an apocalyptic number.

57128654850 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

57128654850 is an abundant number, since it is smaller than the sum of its proper divisors (84550409550).

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

57128654850 is a wasteful number, since it uses less digits than its factorization.

57128654850 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 380857714 (or 380857709 counting only the distinct ones).

The product of its (nonzero) digits is 2688000, while the sum is 51.

The spelling of 57128654850 in words is "fifty-seven billion, one hundred twenty-eight million, six hundred fifty-four thousand, eight hundred fifty".