200000000042 has 8 divisors (see below), whose sum is σ = 300009047076. Its totient is φ = 99996984352.

The previous prime is 200000000041. The next prime is 200000000077. The reversal of 200000000042 is 240000000002.

It can be written as a sum of positive squares in 2 ways, for example, as 198016990081 + 1983009961 = 444991^2 + 44531^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a junction number, because it is equal to n+sod(n) for n = 199999999948 and 200000000029.

It is not an unprimeable number, because it can be changed into a prime (200000000041) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1424003 + ... + 1558134.

Almost surely, 2^200000000042 is an apocalyptic number.

200000000042 is a deficient number, since it is larger than the sum of its proper divisors (100009047034).

200000000042 is a wasteful number, since it uses less digits than its factorization.

200000000042 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3015672.

The product of its (nonzero) digits is 16, while the sum is 8.

Adding to 200000000042 its reverse (240000000002), we get a palindrome (440000000044).

The spelling of 200000000042 in words is "two hundred billion, forty-two", and thus it is an aban number.