72226424636 has 18 divisors (see below), whose sum is σ = 132130670112. Its totient is φ = 34543071640.

The previous prime is 72226424617. The next prime is 72226424657. The reversal of 72226424636 is 63642462227.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 17064620 + ... + 17068851.

It is an arithmetic number, because the mean of its divisors is an integer number (7340592784).

Almost surely, 2^72226424636 is an apocalyptic number.

It is an amenable number.

72226424636 is a deficient number, since it is larger than the sum of its proper divisors (59904245476).

72226424636 is a wasteful number, since it uses less digits than its factorization.

72226424636 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 34133521 (or 34133496 counting only the distinct ones).

The product of its digits is 1161216, while the sum is 44.

The spelling of 72226424636 in words is "seventy-two billion, two hundred twenty-six million, four hundred twenty-four thousand, six hundred thirty-six".