42924454018 has 4 divisors (see below), whose sum is σ = 64386681030. Its totient is φ = 21462227008.

The previous prime is 42924454003. The next prime is 42924454019. The reversal of 42924454018 is 81045442924.

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., 39982801849 + 2941652169 = 199957^2 + 54237^2 .

It is not an unprimeable number, because it can be changed into a prime (42924454019) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10731113503 + ... + 10731113506.

Almost surely, 2^42924454018 is an apocalyptic number.

42924454018 is a deficient number, since it is larger than the sum of its proper divisors (21462227012).

42924454018 is a wasteful number, since it uses less digits than its factorization.

42924454018 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21462227011.

The product of its (nonzero) digits is 368640, while the sum is 43.

The spelling of 42924454018 in words is "forty-two billion, nine hundred twenty-four million, four hundred fifty-four thousand, eighteen".