7125316818 has 8 divisors (see below), whose sum is σ = 14250633648. Its totient is φ = 2375105604.

The previous prime is 7125316789. The next prime is 7125316819. The reversal of 7125316818 is 8186135217.

It is a sphenic number, since it is the product of 3 distinct primes.

7125316818 is an admirable number.

It is a self number, because there is not a number n which added to its sum of digits gives 7125316818.

It is not an unprimeable number, because it can be changed into a prime (7125316819) 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 3 ways as a sum of consecutive naturals, for example, 593776396 + ... + 593776407.

It is an arithmetic number, because the mean of its divisors is an integer number (1781329206).

Almost surely, 2^7125316818 is an apocalyptic number.

7125316818 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

7125316818 is a wasteful number, since it uses less digits than its factorization.

7125316818 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1187552808.

The product of its digits is 80640, while the sum is 42.

The square root of 7125316818 is about 84411.5917276768. The cubic root of 7125316818 is about 1924.2790862550.

The spelling of 7125316818 in words is "seven billion, one hundred twenty-five million, three hundred sixteen thousand, eight hundred eighteen".