8722400737205 has 8 divisors (see below), whose sum is σ = 10749769557432. Its totient is φ = 6789328141248.

The previous prime is 8722400737093. The next prime is 8722400737217. The reversal of 8722400737205 is 5027370042278.

It can be written as a sum of positive squares in 4 ways, for example, as 221729857924 + 8500670879281 = 470882^2 + 2915591^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 8722400737205 - 2³² = 8718105769909 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 8722400737205.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 23574055862 + ... + 23574056231.

It is an arithmetic number, because the mean of its divisors is an integer number (1343721194679).

Almost surely, 2^{8722400737205} is an apocalyptic number.

It is an amenable number.

8722400737205 is a deficient number, since it is larger than the sum of its proper divisors (2027368820227).

8722400737205 is a wasteful number, since it uses less digits than its factorization.

8722400737205 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 47148112135.

The product of its (nonzero) digits is 1317120, while the sum is 47.

The spelling of 8722400737205 in words is "eight trillion, seven hundred twenty-two billion, four hundred million, seven hundred thirty-seven thousand, two hundred five".