72262507205 has 12 divisors (see below), whose sum is σ = 100872561420. Its totient is φ = 49551433344.

The previous prime is 72262507171. The next prime is 72262507231. The reversal of 72262507205 is 50270526227.

It can be written as a sum of positive squares in 2 ways, for example, as 28511673316 + 43750833889 = 168854^2 + 209167^2 .

It is a de Polignac number, because none of the positive numbers 2^k-72262507205 is a prime.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 147474260 + ... + 147474749.

It is an arithmetic number, because the mean of its divisors is an integer number (8406046785).

Almost surely, 2^72262507205 is an apocalyptic number.

It is an amenable number.

72262507205 is a deficient number, since it is larger than the sum of its proper divisors (28610054215).

72262507205 is a wasteful number, since it uses less digits than its factorization.

72262507205 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 294949028 (or 294949021 counting only the distinct ones).

The product of its (nonzero) digits is 117600, while the sum is 38.

The spelling of 72262507205 in words is "seventy-two billion, two hundred sixty-two million, five hundred seven thousand, two hundred five".