231649823808 has 336 divisors, whose sum is σ = 785173334400. Its totient is φ = 67083116544.

The previous prime is 231649823777. The next prime is 231649823809. The reversal of 231649823808 is 808328946132.

231649823808 is a `hidden beast` number, since 2 + 316 + 4 + 98 + 238 + 0 + 8 = 666.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is not an unprimeable number, because it can be changed into a prime (231649823809) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 3403293 + ... + 3470691.

It is an arithmetic number, because the mean of its divisors is an integer number (2336825400).

Almost surely, 2^231649823808 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 231649823808, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (392586667200).

231649823808 is an abundant number, since it is smaller than the sum of its proper divisors (553523510592).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

231649823808 is a wasteful number, since it uses less digits than its factorization.

231649823808 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 67456 (or 67434 counting only the distinct ones).

The product of its (nonzero) digits is 3981312, while the sum is 54.

The spelling of 231649823808 in words is "two hundred thirty-one billion, six hundred forty-nine million, eight hundred twenty-three thousand, eight hundred eight".