57187378052 has 36 divisors (see below), whose sum is σ = 118154759184. Its totient is φ = 24143066640.

The previous prime is 57187378051. The next prime is 57187378069. The reversal of 57187378052 is 25087378175.

It is a junction number, because it is equal to n+sod(n) for n = 57187377985 and 57187378003.

It is not an unprimeable number, because it can be changed into a prime (57187378051) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2164274 + ... + 2190537.

It is an arithmetic number, because the mean of its divisors is an integer number (3282076644).

Almost surely, 2^57187378052 is an apocalyptic number.

It is an amenable number.

57187378052 is an abundant number, since it is smaller than the sum of its proper divisors (60967381132).

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

57187378052 is a wasteful number, since it uses less digits than its factorization.

57187378052 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4354896 (or 4354887 counting only the distinct ones).

The product of its (nonzero) digits is 3292800, while the sum is 53.

The spelling of 57187378052 in words is "fifty-seven billion, one hundred eighty-seven million, three hundred seventy-eight thousand, fifty-two".