42543697226 has 16 divisors (see below), whose sum is σ = 65285801280. Its totient is φ = 20786081760.

The previous prime is 42543697211. The next prime is 42543697237. The reversal of 42543697226 is 62279634524.

It is a happy number.

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, 1059755 + ... + 1099166.

It is an arithmetic number, because the mean of its divisors is an integer number (4080362580).

Almost surely, 2^42543697226 is an apocalyptic number.

42543697226 is a deficient number, since it is larger than the sum of its proper divisors (22742104054).

42543697226 is a wasteful number, since it uses less digits than its factorization.

42543697226 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2159149.

The product of its digits is 4354560, while the sum is 50.

The spelling of 42543697226 in words is "forty-two billion, five hundred forty-three million, six hundred ninety-seven thousand, two hundred twenty-six".