5161821533983 has 2 divisors, whose sum is σ = 5161821533984. Its totient is φ = 5161821533982.

The previous prime is 5161821533893. The next prime is 5161821533993. The reversal of 5161821533983 is 3893351281615.

It is a happy number.

5161821533983 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

Together with previous prime (5161821533893) it forms an Ormiston pair, because they use the same digits, order apart.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 5161821533983 - 2⁴¹ = 2962798278431 is a prime.

It is a super-2 number, since 2×5161821533983² (a number of 26 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (5161821533993) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2580910766991 + 2580910766992.

It is an arithmetic number, because the mean of its divisors is an integer number (2580910766992).

Almost surely, 2^{5161821533983} is an apocalyptic number.

5161821533983 is a deficient number, since it is larger than the sum of its proper divisors (1).

5161821533983 is an equidigital number, since it uses as much as digits as its factorization.

5161821533983 is an evil number, because the sum of its binary digits is even.

The product of its digits is 4665600, while the sum is 55.

The spelling of 5161821533983 in words is "five trillion, one hundred sixty-one billion, eight hundred twenty-one million, five hundred thirty-three thousand, nine hundred eighty-three".