72225760829 has 2 divisors, whose sum is σ = 72225760830. Its totient is φ = 72225760828.

The previous prime is 72225760811. The next prime is 72225760861. The reversal of 72225760829 is 92806752227.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 37293403225 + 34932357604 = 193115^2 + 186902^2 .

It is a cyclic number.

It is not a de Polignac number, because 72225760829 - 2³² = 67930793533 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (75225760829) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 36112880414 + 36112880415.

It is an arithmetic number, because the mean of its divisors is an integer number (36112880415).

Almost surely, 2^72225760829 is an apocalyptic number.

It is an amenable number.

72225760829 is a deficient number, since it is larger than the sum of its proper divisors (1).

72225760829 is an equidigital number, since it uses as much as digits as its factorization.

72225760829 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1693440, while the sum is 50.

The spelling of 72225760829 in words is "seventy-two billion, two hundred twenty-five million, seven hundred sixty thousand, eight hundred twenty-nine".