2105140042918 has 8 divisors (see below), whose sum is σ = 3444774615720. Its totient is φ = 956881837680.

The previous prime is 2105140042909. The next prime is 2105140042931. The reversal of 2105140042918 is 8192400415012.

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

It is a super-2 number, since 2×2105140042918² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 47844091863 + ... + 47844091906.

It is an arithmetic number, because the mean of its divisors is an integer number (430596826965).

Almost surely, 2^{2105140042918} is an apocalyptic number.

2105140042918 is a deficient number, since it is larger than the sum of its proper divisors (1339634572802).

2105140042918 is a wasteful number, since it uses less digits than its factorization.

2105140042918 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 95688183782.

The product of its (nonzero) digits is 23040, while the sum is 37.

The spelling of 2105140042918 in words is "two trillion, one hundred five billion, one hundred forty million, forty-two thousand, nine hundred eighteen".