243723703426 has 16 divisors (see below), whose sum is σ = 425695310784. Its totient is φ = 102482203824.

The previous prime is 243723703409. The next prime is 243723703439. The reversal of 243723703426 is 624307327342.

It is a super-2 number, since 2×243723703426² (a number of 24 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, 164233560 + ... + 164235043.

It is an arithmetic number, because the mean of its divisors is an integer number (26605956924).

Almost surely, 2^243723703426 is an apocalyptic number.

243723703426 is a deficient number, since it is larger than the sum of its proper divisors (181971607358).

243723703426 is a wasteful number, since it uses less digits than its factorization.

243723703426 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 328468665.

The product of its (nonzero) digits is 1016064, while the sum is 43.

The spelling of 243723703426 in words is "two hundred forty-three billion, seven hundred twenty-three million, seven hundred three thousand, four hundred twenty-six".