231843440378880 has 1056 divisors, whose sum is σ = 889095548165760. Its totient is φ = 55393423196160.

The previous prime is 231843440378827. The next prime is 231843440378897. The reversal of 231843440378880 is 88873044348132.

231843440378880 is a `hidden beast` number, since 2 + 3 + 1 + 8 + 4 + 3 + 440 + 37 + 88 + 80 = 666.

It is a tau number, because it is divible by the number of its divisors (1056).

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 95 ways as a sum of consecutive naturals, for example, 10252650454 + ... + 10252673066.

Almost surely, 2^{231843440378880} is an apocalyptic number.

231843440378880 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 231843440378880, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (444547774082880).

231843440378880 is an abundant number, since it is smaller than the sum of its proper divisors (657252107786880).

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

231843440378880 is a wasteful number, since it uses less digits than its factorization.

231843440378880 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22947 (or 22926 counting only the distinct ones).

The product of its (nonzero) digits is 99090432, while the sum is 63.

The spelling of 231843440378880 in words is "two hundred thirty-one trillion, eight hundred forty-three billion, four hundred forty million, three hundred seventy-eight thousand, eight hundred eighty".