231793513999776 has 144 divisors (see below), whose sum is σ = 659512204172640. Its totient is φ = 77223557352960.

The previous prime is 231793513999753. The next prime is 231793513999783. The reversal of 231793513999776 is 677999315397132.

It is a happy number.

231793513999776 is a `hidden beast` number, since 2 + 3 + 1 + 7 + 9 + 3 + 513 + 9 + 9 + 97 + 7 + 6 = 666.

It is a tau number, because it is divible by the number of its divisors (144).

It is a junction number, because it is equal to n+sod(n) for n = 231793513999695 and 231793513999704.

It is an unprimeable number.

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 23 ways as a sum of consecutive naturals, for example, 9178837966 + ... + 9178863218.

It is an arithmetic number, because the mean of its divisors is an integer number (4579945862310).

Almost surely, 2^{231793513999776} is an apocalyptic number.

It is an amenable number.

231793513999776 is an abundant number, since it is smaller than the sum of its proper divisors (427718690172864).

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

231793513999776 is a wasteful number, since it uses less digits than its factorization.

231793513999776 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 40899 (or 40888 counting only the distinct ones).

The product of its digits is 3645685260, while the sum is 81.

The spelling of 231793513999776 in words is "two hundred thirty-one trillion, seven hundred ninety-three billion, five hundred thirteen million, nine hundred ninety-nine thousand, seven hundred seventy-six".