231728826259 has 16 divisors (see below), whose sum is σ = 284252614848. Its totient is φ = 184380060672.

The previous prime is 231728826233. The next prime is 231728826317. The reversal of 231728826259 is 952628827132.

It is a cyclic number.

It is not a de Polignac number, because 231728826259 - 2¹³ = 231728818067 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (231728824259) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 13328992 + ... + 13346365.

It is an arithmetic number, because the mean of its divisors is an integer number (17765788428).

Almost surely, 2^231728826259 is an apocalyptic number.

231728826259 is a deficient number, since it is larger than the sum of its proper divisors (52523788589).

231728826259 is a wasteful number, since it uses less digits than its factorization.

231728826259 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26675454.

The product of its digits is 5806080, while the sum is 55.

The spelling of 231728826259 in words is "two hundred thirty-one billion, seven hundred twenty-eight million, eight hundred twenty-six thousand, two hundred fifty-nine".