57144278578 has 8 divisors (see below), whose sum is σ = 86600092572. Its totient is φ = 28277581056.

The previous prime is 57144278561. The next prime is 57144278591. The reversal of 57144278578 is 87587244175.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 56842665889 + 301612689 = 238417^2 + 17367^2 .

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 (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 147278875 + ... + 147279262.

Almost surely, 2^57144278578 is an apocalyptic number.

57144278578 is a deficient number, since it is larger than the sum of its proper divisors (29455813994).

57144278578 is a wasteful number, since it uses less digits than its factorization.

57144278578 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 294558236.

The product of its digits is 17561600, while the sum is 58.

The spelling of 57144278578 in words is "fifty-seven billion, one hundred forty-four million, two hundred seventy-eight thousand, five hundred seventy-eight".