231904479708 has 600 divisors, whose sum is σ = 733336665600. Its totient is φ = 63651614400.

The previous prime is 231904479707. The next prime is 231904479733. The reversal of 231904479708 is 807974409132.

231904479708 is a `hidden beast` number, since 2 + 3 + 190 + 447 + 9 + 7 + 0 + 8 = 666.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (231904479701) by changing a digit.

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 199 ways as a sum of consecutive naturals, for example, 2794029835 + ... + 2794029917.

It is an arithmetic number, because the mean of its divisors is an integer number (1222227776).

Almost surely, 2^231904479708 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 231904479708, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (366668332800).

231904479708 is an abundant number, since it is smaller than the sum of its proper divisors (501432185892).

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

231904479708 is a wasteful number, since it uses less digits than its factorization.

231904479708 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 193 (or 149 counting only the distinct ones).

The product of its (nonzero) digits is 3048192, while the sum is 54.

The spelling of 231904479708 in words is "two hundred thirty-one billion, nine hundred four million, four hundred seventy-nine thousand, seven hundred eight".