42207853018 has 4 divisors (see below), whose sum is σ = 63311779530. Its totient is φ = 21103926508.

The previous prime is 42207853007. The next prime is 42207853033. The reversal of 42207853018 is 81035870224.

It is a happy number.

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., 25575365929 + 16632487089 = 159923^2 + 128967^2 .

It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10551963253 + ... + 10551963256.

Almost surely, 2^42207853018 is an apocalyptic number.

42207853018 is a deficient number, since it is larger than the sum of its proper divisors (21103926512).

42207853018 is a wasteful number, since it uses less digits than its factorization.

42207853018 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21103926511.

The product of its (nonzero) digits is 107520, while the sum is 40.

The spelling of 42207853018 in words is "forty-two billion, two hundred seven million, eight hundred fifty-three thousand, eighteen".