7218254010725 has 6 divisors (see below), whose sum is σ = 8950634973330. Its totient is φ = 5774603208560.

The previous prime is 7218254010607. The next prime is 7218254010727. The reversal of 7218254010725 is 5270104528127.

It can be written as a sum of positive squares in 3 ways, for example, as 2471633612449 + 4746620398276 = 1572143^2 + 2178674^2 .

It is not a de Polignac number, because 7218254010725 - 2²⁰ = 7218252962149 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7218254010727) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 144365080190 + ... + 144365080239.

It is an arithmetic number, because the mean of its divisors is an integer number (1491772495555).

Almost surely, 2^{7218254010725} is an apocalyptic number.

It is an amenable number.

7218254010725 is a deficient number, since it is larger than the sum of its proper divisors (1732380962605).

7218254010725 is a wasteful number, since it uses less digits than its factorization.

7218254010725 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 288730160439 (or 288730160434 counting only the distinct ones).

The product of its (nonzero) digits is 313600, while the sum is 44.

The spelling of 7218254010725 in words is "seven trillion, two hundred eighteen billion, two hundred fifty-four million, ten thousand, seven hundred twenty-five".