285140253418 has 4 divisors (see below), whose sum is σ = 427710380130. Its totient is φ = 142570126708.

The previous prime is 285140253413. The next prime is 285140253427. The reversal of 285140253418 is 814352041582.

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., 196322544889 + 88817708529 = 443083^2 + 298023^2 .

It is not an unprimeable number, because it can be changed into a prime (285140253413) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 71285063353 + ... + 71285063356.

Almost surely, 2^285140253418 is an apocalyptic number.

285140253418 is a deficient number, since it is larger than the sum of its proper divisors (142570126712).

285140253418 is a wasteful number, since it uses less digits than its factorization.

285140253418 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 142570126711.

The product of its (nonzero) digits is 307200, while the sum is 43.

The spelling of 285140253418 in words is "two hundred eighty-five billion, one hundred forty million, two hundred fifty-three thousand, four hundred eighteen".