72056004226 has 4 divisors (see below), whose sum is σ = 108084006342. Its totient is φ = 36028002112.

The previous prime is 72056004203. The next prime is 72056004253. The reversal of 72056004226 is 62240065027.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 66257334025 + 5798670201 = 257405^2 + 76149^2 .

It is a junction number, because it is equal to n+sod(n) for n = 72056004191 and 72056004200.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 18014001055 + ... + 18014001058.

Almost surely, 2^72056004226 is an apocalyptic number.

72056004226 is a deficient number, since it is larger than the sum of its proper divisors (36028002116).

72056004226 is a wasteful number, since it uses less digits than its factorization.

72056004226 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 36028002115.

The product of its (nonzero) digits is 40320, while the sum is 34.

The spelling of 72056004226 in words is "seventy-two billion, fifty-six million, four thousand, two hundred twenty-six".