5161812334531 has 2 divisors, whose sum is σ = 5161812334532. Its totient is φ = 5161812334530.

The previous prime is 5161812334507. The next prime is 5161812334603. The reversal of 5161812334531 is 1354332181615.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 5161812334531 - 2⁵ = 5161812334499 is a prime.

It is a super-2 number, since 2×5161812334531² (a number of 26 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (5161816334531) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2580906167265 + 2580906167266.

It is an arithmetic number, because the mean of its divisors is an integer number (2580906167266).

Almost surely, 2^{5161812334531} is an apocalyptic number.

5161812334531 is a deficient number, since it is larger than the sum of its proper divisors (1).

5161812334531 is an equidigital number, since it uses as much as digits as its factorization.

5161812334531 is an evil number, because the sum of its binary digits is even.

The product of its digits is 259200, while the sum is 43.

The spelling of 5161812334531 in words is "five trillion, one hundred sixty-one billion, eight hundred twelve million, three hundred thirty-four thousand, five hundred thirty-one".