7918213679 has 8 divisors (see below), whose sum is σ = 8267812560. Its totient is φ = 7573718656.

The previous prime is 7918213637. The next prime is 7918213711. The reversal of 7918213679 is 9763128197.

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 7918213679 - 2⁸ = 7918213423 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 7918213679.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7918213609) 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, 1272794 + ... + 1278999.

It is an arithmetic number, because the mean of its divisors is an integer number (1033476570).

Almost surely, 2^7918213679 is an apocalyptic number.

7918213679 is a deficient number, since it is larger than the sum of its proper divisors (349598881).

7918213679 is a wasteful number, since it uses less digits than its factorization.

7918213679 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2551929.

The product of its digits is 1143072, while the sum is 53.

The square root of 7918213679 is about 88984.3451344111. The cubic root of 7918213679 is about 1993.1611147289.

The spelling of 7918213679 in words is "seven billion, nine hundred eighteen million, two hundred thirteen thousand, six hundred seventy-nine".