7122311617 has 4 divisors (see below), whose sum is σ = 7159214980. Its totient is φ = 7085408256.

The previous prime is 7122311593. The next prime is 7122311663. The reversal of 7122311617 is 7161132217.

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

It can be written as a sum of positive squares in 2 ways, for example, as 2197640641 + 4924670976 = 46879^2 + 70176^2 .

It is a cyclic number.

It is not a de Polignac number, because 7122311617 - 2¹¹ = 7122309569 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (7122321617) 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, 18451392 + ... + 18451777.

It is an arithmetic number, because the mean of its divisors is an integer number (1789803745).

Almost surely, 2^7122311617 is an apocalyptic number.

It is an amenable number.

7122311617 is a deficient number, since it is larger than the sum of its proper divisors (36903363).

7122311617 is a wasteful number, since it uses less digits than its factorization.

7122311617 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 36903362.

The product of its digits is 3528, while the sum is 31.

The square root of 7122311617 is about 84393.7889717010. The cubic root of 7122311617 is about 1924.0085177656.

The spelling of 7122311617 in words is "seven billion, one hundred twenty-two million, three hundred eleven thousand, six hundred seventeen".