2818018642 has 16 divisors (see below), whose sum is σ = 4447161432. Its totient is φ = 1337489280.

The previous prime is 2818018603. The next prime is 2818018657. The reversal of 2818018642 is 2468108182.

It can be written as a sum of positive squares in 4 ways, for example, as 2793228201 + 24790441 = 52851^2 + 4979^2 .

It is a junction number, because it is equal to n+sod(n) for n = 2818018595 and 2818018604.

It is an unprimeable number.

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 in 7 ways as a sum of consecutive naturals, for example, 461373 + ... + 467440.

Almost surely, 2^2818018642 is an apocalyptic number.

2818018642 is a deficient number, since it is larger than the sum of its proper divisors (1629142790).

2818018642 is a wasteful number, since it uses less digits than its factorization.

2818018642 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 928893.

The product of its (nonzero) digits is 49152, while the sum is 40.

The square root of 2818018642 is about 53085.0133465181. The cubic root of 2818018642 is about 1412.4766829576.

The spelling of 2818018642 in words is "two billion, eight hundred eighteen million, eighteen thousand, six hundred forty-two".