7164113681 has 4 divisors (see below), whose sum is σ = 7164527652. Its totient is φ = 7163699712.

The previous prime is 7164113653. The next prime is 7164113683. The reversal of 7164113681 is 1863114617.

7164113681 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

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 3901876225 + 3262237456 = 62465^2 + 57116^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-7164113681 is a prime.

It is a super-2 number, since 2×7164113681² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (7164113683) 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, 179840 + ... + 216033.

It is an arithmetic number, because the mean of its divisors is an integer number (1791131913).

Almost surely, 2^7164113681 is an apocalyptic number.

It is an amenable number.

7164113681 is a deficient number, since it is larger than the sum of its proper divisors (413971).

7164113681 is a wasteful number, since it uses less digits than its factorization.

7164113681 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 413970.

The product of its digits is 24192, while the sum is 38.

The square root of 7164113681 is about 84641.0874280334. The cubic root of 7164113681 is about 1927.7652892061.

The spelling of 7164113681 in words is "seven billion, one hundred sixty-four million, one hundred thirteen thousand, six hundred eighty-one".