243376796409 has 8 divisors (see below), whose sum is σ = 324550276992. Its totient is φ = 162227256720.

The previous prime is 243376796407. The next prime is 243376796447. The reversal of 243376796409 is 904697673342.

It is a happy number.

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

It is not a de Polignac number, because 243376796409 - 2¹ = 243376796407 is a prime.

It is a Smith number, since the sum of its digits (60) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is not an unprimeable number, because it can be changed into a prime (243376796401) 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, 5961489 + ... + 6002174.

It is an arithmetic number, because the mean of its divisors is an integer number (40568784624).

Almost surely, 2^243376796409 is an apocalyptic number.

It is an amenable number.

243376796409 is a deficient number, since it is larger than the sum of its proper divisors (81173480583).

243376796409 is a wasteful number, since it uses less digits than its factorization.

243376796409 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11970447.

The product of its (nonzero) digits is 41150592, while the sum is 60.

The spelling of 243376796409 in words is "two hundred forty-three billion, three hundred seventy-six million, seven hundred ninety-six thousand, four hundred nine".