7142858650 has 12 divisors (see below), whose sum is σ = 13285717182. Its totient is φ = 2857143440.

The previous prime is 7142858647. The next prime is 7142858663. The reversal of 7142858650 is 568582417.

It can be written as a sum of positive squares in 3 ways, for example, as 6165233361 + 977625289 = 78519^2 + 31267^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 7142858650.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 71428537 + ... + 71428636.

Almost surely, 2^7142858650 is an apocalyptic number.

7142858650 is a deficient number, since it is larger than the sum of its proper divisors (6142858532).

7142858650 is a wasteful number, since it uses less digits than its factorization.

7142858650 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 142857185 (or 142857180 counting only the distinct ones).

The product of its (nonzero) digits is 537600, while the sum is 46.

The square root of 7142858650 is about 84515.4343892286. The cubic root of 7142858650 is about 1925.8569210061.

The spelling of 7142858650 in words is "seven billion, one hundred forty-two million, eight hundred fifty-eight thousand, six hundred fifty".