243394123168426 has 16 divisors (see below), whose sum is σ = 366195396795840. Its totient is φ = 121328993348640.

The previous prime is 243394123168379. The next prime is 243394123168519. The reversal of 243394123168426 is 624861321493342.

It is a super-2 number, since 2×243394123168426² (a number of 30 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 353381755 + ... + 354069841.

It is an arithmetic number, because the mean of its divisors is an integer number (22887212299740).

Almost surely, 2^{243394123168426} is an apocalyptic number.

243394123168426 is a deficient number, since it is larger than the sum of its proper divisors (122801273627414).

243394123168426 is a wasteful number, since it uses less digits than its factorization.

243394123168426 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1222749.

The product of its digits is 35831808, while the sum is 58.

The spelling of 243394123168426 in words is "two hundred forty-three trillion, three hundred ninety-four billion, one hundred twenty-three million, one hundred sixty-eight thousand, four hundred twenty-six".