231783728875 has 32 divisors (see below), whose sum is σ = 314990395200. Its totient is φ = 169610112000.

The previous prime is 231783728863. The next prime is 231783728903. The reversal of 231783728875 is 578827387132.

It is a happy number.

It is not a de Polignac number, because 231783728875 - 2¹¹ = 231783726827 is a prime.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1613766 + ... + 1751515.

It is an arithmetic number, because the mean of its divisors is an integer number (9843449850).

Almost surely, 2^231783728875 is an apocalyptic number.

231783728875 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

231783728875 is a deficient number, since it is larger than the sum of its proper divisors (83206666325).

231783728875 is a wasteful number, since it uses less digits than its factorization.

231783728875 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3365344 (or 3365334 counting only the distinct ones).

The product of its digits is 31610880, while the sum is 61.

The spelling of 231783728875 in words is "two hundred thirty-one billion, seven hundred eighty-three million, seven hundred twenty-eight thousand, eight hundred seventy-five".