231579681794 has 16 divisors (see below), whose sum is σ = 348917916600. Its totient is φ = 115273801344.

The previous prime is 231579681793. The next prime is 231579681811. The reversal of 231579681794 is 497186975132.

It can be written as a sum of positive squares in 4 ways, for example, as 229187200225 + 2392481569 = 478735^2 + 48913^2 .

It is not an unprimeable number, because it can be changed into a prime (231579681793) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8650622 + ... + 8677350.

Almost surely, 2^231579681794 is an apocalyptic number.

231579681794 is a deficient number, since it is larger than the sum of its proper divisors (117338234806).

231579681794 is a wasteful number, since it uses less digits than its factorization.

231579681794 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 45877.

The product of its digits is 22861440, while the sum is 62.

The spelling of 231579681794 in words is "two hundred thirty-one billion, five hundred seventy-nine million, six hundred eighty-one thousand, seven hundred ninety-four".