7158668518 has 8 divisors (see below), whose sum is σ = 10762464240. Its totient is φ = 3571180440.

The previous prime is 7158668483. The next prime is 7158668519. The reversal of 7158668518 is 8158668517.

It is a happy number.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7158668519) 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, 4075813 + ... + 4077568.

It is an arithmetic number, because the mean of its divisors is an integer number (1345308030).

Almost surely, 2^7158668518 is an apocalyptic number.

7158668518 is a deficient number, since it is larger than the sum of its proper divisors (3603795722).

7158668518 is a wasteful number, since it uses less digits than its factorization.

7158668518 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8153822.

The product of its digits is 3225600, while the sum is 55.

The square root of 7158668518 is about 84608.9151212802. The cubic root of 7158668518 is about 1927.2767590465.

Subtracting 7158668518 from its reverse (8158668517), we obtain a palindrome (999999999).

The spelling of 7158668518 in words is "seven billion, one hundred fifty-eight million, six hundred sixty-eight thousand, five hundred eighteen".