7218073018 has 16 divisors (see below), whose sum is σ = 11697469056. Its totient is φ = 3320702640.

The previous prime is 7218072997. The next prime is 7218073019. The reversal of 7218073018 is 8103708127.

It is not an unprimeable number, because it can be changed into a prime (7218073019) 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 in 7 ways as a sum of consecutive naturals, for example, 438246 + ... + 454417.

It is an arithmetic number, because the mean of its divisors is an integer number (731091816).

Almost surely, 2^7218073018 is an apocalyptic number.

7218073018 is a deficient number, since it is larger than the sum of its proper divisors (4479396038).

7218073018 is a wasteful number, since it uses less digits than its factorization.

7218073018 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 892989.

The product of its (nonzero) digits is 18816, while the sum is 37.

The square root of 7218073018 is about 84959.2432758202. The cubic root of 7218073018 is about 1932.5930958110.

The spelling of 7218073018 in words is "seven billion, two hundred eighteen million, seventy-three thousand, eighteen".