72263636227 has 4 divisors (see below), whose sum is σ = 76514438376. Its totient is φ = 68012834080.

The previous prime is 72263636219. The next prime is 72263636239.

72263636227 is nontrivially palindromic in base 10.

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

It is a cyclic number.

It is not a de Polignac number, because 72263636227 - 2³ = 72263636219 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (72263636297) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2125401049 + ... + 2125401082.

It is an arithmetic number, because the mean of its divisors is an integer number (19128609594).

Almost surely, 2^72263636227 is an apocalyptic number.

72263636227 is a deficient number, since it is larger than the sum of its proper divisors (4250802149).

72263636227 is a wasteful number, since it uses less digits than its factorization.

72263636227 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4250802148.

The product of its digits is 1524096, while the sum is 46.

The spelling of 72263636227 in words is "seventy-two billion, two hundred sixty-three million, six hundred thirty-six thousand, two hundred twenty-seven".