72213543235 has 16 divisors (see below), whose sum is σ = 87378932736. Its totient is φ = 57289919488.

The previous prime is 72213543203. The next prime is 72213543331. The reversal of 72213543235 is 53234531227.

It is a cyclic number.

It is not a de Polignac number, because 72213543235 - 2⁵ = 72213543203 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 72213543194 and 72213543203.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 615294 + ... + 723196.

It is an arithmetic number, because the mean of its divisors is an integer number (5461183296).

Almost surely, 2^72213543235 is an apocalyptic number.

72213543235 is a deficient number, since it is larger than the sum of its proper divisors (15165389501).

72213543235 is a wasteful number, since it uses less digits than its factorization.

72213543235 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 109022.

The product of its digits is 151200, while the sum is 37.

The spelling of 72213543235 in words is "seventy-two billion, two hundred thirteen million, five hundred forty-three thousand, two hundred thirty-five".