7218073250 has 16 divisors (see below), whose sum is σ = 13512233592. Its totient is φ = 2887229200.

The previous prime is 7218073249. The next prime is 7218073259. The reversal of 7218073250 is 523708127.

It can be written as a sum of positive squares in 4 ways, for example, as 1513443409 + 5704629841 = 38903^2 + 75529^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 7218073250.

It is not an unprimeable number, because it can be changed into a prime (7218073259) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 14435897 + ... + 14436396.

Almost surely, 2^7218073250 is an apocalyptic number.

7218073250 is a deficient number, since it is larger than the sum of its proper divisors (6294160342).

7218073250 is a wasteful number, since it uses less digits than its factorization.

7218073250 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28872310 (or 28872300 counting only the distinct ones).

The product of its (nonzero) digits is 23520, while the sum is 35.

The square root of 7218073250 is about 84959.2446411808. The cubic root of 7218073250 is about 1932.5931165165.

The spelling of 7218073250 in words is "seven billion, two hundred eighteen million, seventy-three thousand, two hundred fifty".