7816518879 has 48 divisors (see below), whose sum is σ = 11640996000. Its totient is φ = 4659752448.

The previous prime is 7816518863. The next prime is 7816518937. The reversal of 7816518879 is 9788156187.

It is not a de Polignac number, because 7816518879 - 2⁴ = 7816518863 is a prime.

It is a super-2 number, since 2×7816518879² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7816518679) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 5045397 + ... + 5046945.

It is an arithmetic number, because the mean of its divisors is an integer number (242520750).

Almost surely, 2^7816518879 is an apocalyptic number.

7816518879 is a deficient number, since it is larger than the sum of its proper divisors (3824477121).

7816518879 is a wasteful number, since it uses less digits than its factorization.

7816518879 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1884 (or 1871 counting only the distinct ones).

The product of its digits is 6773760, while the sum is 60.

The square root of 7816518879 is about 88411.0789381059. The cubic root of 7816518879 is about 1984.5915005147.

The spelling of 7816518879 in words is "seven billion, eight hundred sixteen million, five hundred eighteen thousand, eight hundred seventy-nine".