57446386218 has 64 divisors (see below), whose sum is σ = 143455898880. Its totient is φ = 16907292864.

The previous prime is 57446386189. The next prime is 57446386229. The reversal of 57446386218 is 81268364475.

It is a happy number.

57446386218 is a `hidden beast` number, since 5 + 7 + 4 + 4 + 6 + 3 + 8 + 621 + 8 = 666.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is an unprimeable number.

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 31 ways as a sum of consecutive naturals, for example, 1762821 + ... + 1795112.

It is an arithmetic number, because the mean of its divisors is an integer number (2241498420).

Almost surely, 2^57446386218 is an apocalyptic number.

57446386218 is an abundant number, since it is smaller than the sum of its proper divisors (86009512662).

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

57446386218 is a wasteful number, since it uses less digits than its factorization.

57446386218 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3557980 (or 3557974 counting only the distinct ones).

The product of its digits is 7741440, while the sum is 54.

The spelling of 57446386218 in words is "fifty-seven billion, four hundred forty-six million, three hundred eighty-six thousand, two hundred eighteen".