57854309818 has 4 divisors (see below), whose sum is σ = 86781464730. Its totient is φ = 28927154908.

The previous prime is 57854309809. The next prime is 57854309819. The reversal of 57854309818 is 81890345875.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 46847572249 + 11006737569 = 216443^2 + 104913^2 .

It is a Smith number, since the sum of its digits (58) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is not an unprimeable number, because it can be changed into a prime (57854309819) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 14463577453 + ... + 14463577456.

Almost surely, 2^57854309818 is an apocalyptic number.

57854309818 is a deficient number, since it is larger than the sum of its proper divisors (28927154912).

57854309818 is a wasteful number, since it uses less digits than its factorization.

57854309818 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28927154911.

The product of its (nonzero) digits is 9676800, while the sum is 58.

The spelling of 57854309818 in words is "fifty-seven billion, eight hundred fifty-four million, three hundred nine thousand, eight hundred eighteen".