2105318679 has 8 divisors (see below), whose sum is σ = 2808113520. Its totient is φ = 1403034816.

The previous prime is 2105318671. The next prime is 2105318729. The reversal of 2105318679 is 9768135012.

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

It is not a de Polignac number, because 2105318679 - 2³ = 2105318671 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 2105318679.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2105318671) 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, 118024 + ... + 134685.

It is an arithmetic number, because the mean of its divisors is an integer number (351014190).

Almost surely, 2^2105318679 is an apocalyptic number.

2105318679 is a deficient number, since it is larger than the sum of its proper divisors (702794841).

2105318679 is a wasteful number, since it uses less digits than its factorization.

2105318679 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 255489.

The product of its (nonzero) digits is 90720, while the sum is 42.

The square root of 2105318679 is about 45883.7517973411. The cubic root of 2105318679 is about 1281.6593630058.

The spelling of 2105318679 in words is "two billion, one hundred five million, three hundred eighteen thousand, six hundred seventy-nine".