243881498641 has 8 divisors (see below), whose sum is σ = 266056693344. Its totient is φ = 221706995520.

The previous prime is 243881498629. The next prime is 243881498677. The reversal of 243881498641 is 146894188342.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 243881498641 - 2⁷ = 243881498513 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (243881498611) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 804921 + ... + 1065673.

It is an arithmetic number, because the mean of its divisors is an integer number (33257086668).

Almost surely, 2^243881498641 is an apocalyptic number.

It is an amenable number.

243881498641 is a deficient number, since it is larger than the sum of its proper divisors (22175194703).

243881498641 is a wasteful number, since it uses less digits than its factorization.

243881498641 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 345791.

The product of its digits is 10616832, while the sum is 58.

The spelling of 243881498641 in words is "two hundred forty-three billion, eight hundred eighty-one million, four hundred ninety-eight thousand, six hundred forty-one".