72226627229 has 2 divisors, whose sum is σ = 72226627230. Its totient is φ = 72226627228.

The previous prime is 72226627199. The next prime is 72226627313. The reversal of 72226627229 is 92272662227.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 43833703225 + 28392924004 = 209365^2 + 168502^2 .

It is a cyclic number.

It is not a de Polignac number, because 72226627229 - 2⁸ = 72226626973 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (72226623229) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 36113313614 + 36113313615.

It is an arithmetic number, because the mean of its divisors is an integer number (36113313615).

Almost surely, 2^72226627229 is an apocalyptic number.

It is an amenable number.

72226627229 is a deficient number, since it is larger than the sum of its proper divisors (1).

72226627229 is an equidigital number, since it uses as much as digits as its factorization.

72226627229 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1016064, while the sum is 47.

The spelling of 72226627229 in words is "seventy-two billion, two hundred twenty-six million, six hundred twenty-seven thousand, two hundred twenty-nine".