7857224243 has 8 divisors (see below), whose sum is σ = 8867087280. Its totient is φ = 6896622880.

The previous prime is 7857224233. The next prime is 7857224251. The reversal of 7857224243 is 3424227587.

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

It is a cyclic number.

It is not a de Polignac number, because 7857224243 - 2¹⁰ = 7857223219 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 7857224194 and 7857224203.

It is not an unprimeable number, because it can be changed into a prime (7857224233) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 12315080 + ... + 12315717.

It is an arithmetic number, because the mean of its divisors is an integer number (1108385910).

Almost surely, 2^7857224243 is an apocalyptic number.

7857224243 is a deficient number, since it is larger than the sum of its proper divisors (1009863037).

7857224243 is a wasteful number, since it uses less digits than its factorization.

7857224243 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24630837.

The product of its digits is 752640, while the sum is 44.

The square root of 7857224243 is about 88640.9851197515. The cubic root of 7857224243 is about 1988.0305290362.

The spelling of 7857224243 in words is "seven billion, eight hundred fifty-seven million, two hundred twenty-four thousand, two hundred forty-three".