2068802018 has 4 divisors (see below), whose sum is σ = 3103203030. Its totient is φ = 1034401008.

The previous prime is 2068802017. The next prime is 2068802033. The reversal of 2068802018 is 8102088602.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 8102088602 = 2 ⋅4051044301.

It can be written as a sum of positive squares in only one way, i.e., 1514999929 + 553802089 = 38923^2 + 23533^2 .

It is not an unprimeable number, because it can be changed into a prime (2068802017) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 517200503 + ... + 517200506.

Almost surely, 2^2068802018 is an apocalyptic number.

2068802018 is a deficient number, since it is larger than the sum of its proper divisors (1034401012).

2068802018 is a wasteful number, since it uses less digits than its factorization.

2068802018 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1034401011.

The product of its (nonzero) digits is 12288, while the sum is 35.

The square root of 2068802018 is about 45484.0853266283. The cubic root of 2068802018 is about 1274.2059940118.

The spelling of 2068802018 in words is "two billion, sixty-eight million, eight hundred two thousand, eighteen".