72278087227 has 2 divisors, whose sum is σ = 72278087228. Its totient is φ = 72278087226.

The previous prime is 72278087201. The next prime is 72278087251.

72278087227 is nontrivially palindromic in base 10.

It is a strong prime.

It is a palprime.

It is a cyclic number.

It is not a de Polignac number, because 72278087227 - 2¹¹ = 72278085179 is a prime.

It is not a weakly prime, because it can be changed into another prime (72278088227) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 36139043613 + 36139043614.

It is an arithmetic number, because the mean of its divisors is an integer number (36139043614).

Almost surely, 2^72278087227 is an apocalyptic number.

72278087227 is a deficient number, since it is larger than the sum of its proper divisors (1).

72278087227 is an equidigital number, since it uses as much as digits as its factorization.

72278087227 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2458624, while the sum is 52.

The spelling of 72278087227 in words is "seventy-two billion, two hundred seventy-eight million, eighty-seven thousand, two hundred twenty-seven".