57042578218 has 8 divisors (see below), whose sum is σ = 85806258948. Its totient is φ = 28440491904.

The previous prime is 57042578207. The next prime is 57042578227. The reversal of 57042578218 is 81287524075.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 55713465369 + 1329112849 = 236037^2 + 36457^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

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 3 ways as a sum of consecutive naturals, for example, 40397721 + ... + 40399132.

Almost surely, 2^57042578218 is an apocalyptic number.

57042578218 is a deficient number, since it is larger than the sum of its proper divisors (28763680730).

57042578218 is a wasteful number, since it uses less digits than its factorization.

57042578218 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 80797208.

The product of its (nonzero) digits is 1254400, while the sum is 49.

The spelling of 57042578218 in words is "fifty-seven billion, forty-two million, five hundred seventy-eight thousand, two hundred eighteen".