2168394791926 has 16 divisors (see below), whose sum is σ = 3559840320960. Its totient is φ = 982423459080.

The previous prime is 2168394791837. The next prime is 2168394791947. The reversal of 2168394791926 is 6291974938612.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 160519956 + ... + 160533463.

It is an arithmetic number, because the mean of its divisors is an integer number (222490020060).

Almost surely, 2^{2168394791926} is an apocalyptic number.

2168394791926 is a deficient number, since it is larger than the sum of its proper divisors (1391445529034).

2168394791926 is a wasteful number, since it uses less digits than its factorization.

2168394791926 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 321053739.

The product of its digits is 70543872, while the sum is 67.

The spelling of 2168394791926 in words is "two trillion, one hundred sixty-eight billion, three hundred ninety-four million, seven hundred ninety-one thousand, nine hundred twenty-six".