5691918073 has 4 divisors (see below), whose sum is σ = 5888191140. Its totient is φ = 5495645008.

The previous prime is 5691918061. The next prime is 5691918079. The reversal of 5691918073 is 3708191965.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 3708191965 = 5 ⋅741638393.

It can be written as a sum of positive squares in 2 ways, for example, as 1074987369 + 4616930704 = 32787^2 + 67948^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-5691918073 is a prime.

It is a Smith number, since the sum of its digits (49) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (5691918079) 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, 98136490 + ... + 98136547.

It is an arithmetic number, because the mean of its divisors is an integer number (1472047785).

Almost surely, 2^5691918073 is an apocalyptic number.

It is an amenable number.

5691918073 is a deficient number, since it is larger than the sum of its proper divisors (196273067).

5691918073 is a wasteful number, since it uses less digits than its factorization.

5691918073 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 196273066.

The product of its (nonzero) digits is 408240, while the sum is 49.

The square root of 5691918073 is about 75444.8014975187. The cubic root of 5691918073 is about 1785.4713266523.

The spelling of 5691918073 in words is "five billion, six hundred ninety-one million, nine hundred eighteen thousand, seventy-three".