5162052611981 has 2 divisors, whose sum is σ = 5162052611982. Its totient is φ = 5162052611980.

The previous prime is 5162052611867. The next prime is 5162052612091. The reversal of 5162052611981 is 1891162502615.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 5102764744900 + 59287867081 = 2258930^2 + 243491^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-5162052611981 is a prime.

It is a super-2 number, since 2×5162052611981² (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 (5162052641981) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2581026305990 + 2581026305991.

It is an arithmetic number, because the mean of its divisors is an integer number (2581026305991).

Almost surely, 2^{5162052611981} is an apocalyptic number.

It is an amenable number.

5162052611981 is a deficient number, since it is larger than the sum of its proper divisors (1).

5162052611981 is an equidigital number, since it uses as much as digits as its factorization.

5162052611981 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 259200, while the sum is 47.

The spelling of 5162052611981 in words is "five trillion, one hundred sixty-two billion, fifty-two million, six hundred eleven thousand, nine hundred eighty-one".