5161812334573 has 4 divisors (see below), whose sum is σ = 5162248568188. Its totient is φ = 5161376100960.

The previous prime is 5161812334531. The next prime is 5161812334603. The reversal of 5161812334573 is 3754332181615.

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 3928375532169 + 1233436802404 = 1982013^2 + 1110602^2 .

It is a cyclic number.

It is not a de Polignac number, because 5161812334573 - 2¹³ = 5161812326381 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5161812334673) 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, 218099058 + ... + 218122723.

It is an arithmetic number, because the mean of its divisors is an integer number (1290562142047).

Almost surely, 2^{5161812334573} is an apocalyptic number.

It is an amenable number.

5161812334573 is a deficient number, since it is larger than the sum of its proper divisors (436233615).

5161812334573 is a wasteful number, since it uses less digits than its factorization.

5161812334573 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 436233614.

The product of its digits is 1814400, while the sum is 49.

The spelling of 5161812334573 in words is "five trillion, one hundred sixty-one billion, eight hundred twelve million, three hundred thirty-four thousand, five hundred seventy-three".