105831390794 has 8 divisors (see below), whose sum is σ = 162618966468. Its totient is φ = 51625068640.

The previous prime is 105831390779. The next prime is 105831390811. The reversal of 105831390794 is 497093138501.

It can be written as a sum of positive squares in 2 ways, for example, as 105797320225 + 34070569 = 325265^2 + 5837^2 .

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

It is a super-2 number, since 2×105831390794² (a number of 23 digits) contains 22 as substring.

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, 645313277 + ... + 645313440.

Almost surely, 2^105831390794 is an apocalyptic number.

105831390794 is a deficient number, since it is larger than the sum of its proper divisors (56787575674).

105831390794 is a wasteful number, since it uses less digits than its factorization.

105831390794 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1290626760.

The product of its (nonzero) digits is 816480, while the sum is 50.

The spelling of 105831390794 in words is "one hundred five billion, eight hundred thirty-one million, three hundred ninety thousand, seven hundred ninety-four".