231443671576405 has 16 divisors (see below), whose sum is σ = 280430660075904. Its totient is φ = 183356124511680.

The previous prime is 231443671576339. The next prime is 231443671576423. The reversal of 231443671576405 is 504675176344132.

It is not a de Polignac number, because 231443671576405 - 2⁷ = 231443671576277 is a prime.

It is a super-2 number, since 2×231443671576405² (a number of 30 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 231443671576405.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 82517775 + ... + 85276435.

It is an arithmetic number, because the mean of its divisors is an integer number (17526916254744).

Almost surely, 2^{231443671576405} is an apocalyptic number.

It is an amenable number.

231443671576405 is a deficient number, since it is larger than the sum of its proper divisors (48986988499499).

231443671576405 is a wasteful number, since it uses less digits than its factorization.

231443671576405 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2921676.

The product of its (nonzero) digits is 50803200, while the sum is 58.

The spelling of 231443671576405 in words is "two hundred thirty-one trillion, four hundred forty-three billion, six hundred seventy-one million, five hundred seventy-six thousand, four hundred five".