72530022229 has 40 divisors (see below), whose sum is σ = 89579723200. Its totient is φ = 57526871976.

The previous prime is 72530022193. The next prime is 72530022233. The reversal of 72530022229 is 92222003527.

It is not a de Polignac number, because 72530022229 - 2¹¹ = 72530020181 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 72530022194 and 72530022203.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (72530022269) by changing a digit.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 1686744682 + ... + 1686744724.

It is an arithmetic number, because the mean of its divisors is an integer number (2239493080).

Almost surely, 2^72530022229 is an apocalyptic number.

It is an amenable number.

72530022229 is a deficient number, since it is larger than the sum of its proper divisors (17049700971).

72530022229 is an frugal number, since it uses more digits than its factorization.

72530022229 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 212 (or 69 counting only the distinct ones).

The product of its (nonzero) digits is 30240, while the sum is 34.

The spelling of 72530022229 in words is "seventy-two billion, five hundred thirty million, twenty-two thousand, two hundred twenty-nine".