2018915368 has 8 divisors (see below), whose sum is σ = 3785466330. Its totient is φ = 1009457680.

The previous prime is 2018915351. The next prime is 2018915387. The reversal of 2018915368 is 8635198102.

It can be written as a sum of positive squares in only one way, i.e., 1837151044 + 181764324 = 42862^2 + 13482^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 126182203 + ... + 126182218.

Almost surely, 2^2018915368 is an apocalyptic number.

It is an amenable number.

2018915368 is a deficient number, since it is larger than the sum of its proper divisors (1766550962).

2018915368 is a wasteful number, since it uses less digits than its factorization.

2018915368 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 252364427 (or 252364423 counting only the distinct ones).

The product of its (nonzero) digits is 103680, while the sum is 43.

The square root of 2018915368 is about 44932.3421156743. The cubic root of 2018915368 is about 1263.8805717558.

The spelling of 2018915368 in words is "two billion, eighteen million, nine hundred fifteen thousand, three hundred sixty-eight".