7142207858 has 12 divisors (see below), whose sum is σ = 11380577802. Its totient is φ = 3361038720.

The previous prime is 7142207857. The next prime is 7142207881. The reversal of 7142207858 is 8587022417.

It can be written as a sum of positive squares in 3 ways, for example, as 6326134369 + 816073489 = 79537^2 + 28567^2 .

It is a super-2 number, since 2×7142207858² (a number of 21 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (7142207857) 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, 6177803 + ... + 6178958.

Almost surely, 2^7142207858 is an apocalyptic number.

7142207858 is a deficient number, since it is larger than the sum of its proper divisors (4238369944).

7142207858 is a wasteful number, since it uses less digits than its factorization.

7142207858 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12356797 (or 12356780 counting only the distinct ones).

The product of its (nonzero) digits is 250880, while the sum is 44.

The square root of 7142207858 is about 84511.5841645392. The cubic root of 7142207858 is about 1925.7984304024.

The spelling of 7142207858 in words is "seven billion, one hundred forty-two million, two hundred seven thousand, eight hundred fifty-eight".