5167915622981 has 2 divisors, whose sum is σ = 5167915622982. Its totient is φ = 5167915622980.

The previous prime is 5167915622963. The next prime is 5167915623041. The reversal of 5167915622981 is 1892265197615.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 5092491789025 + 75423833956 = 2256655^2 + 274634^2 .

It is a cyclic number.

It is not a de Polignac number, because 5167915622981 - 2⁶ = 5167915622917 is a prime.

It is a super-2 number, since 2×5167915622981² (a number of 26 digits) contains 22 as substring.

It is a Sophie Germain prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (5167915622281) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2583957811490 + 2583957811491.

It is an arithmetic number, because the mean of its divisors is an integer number (2583957811491).

Almost surely, 2^{5167915622981} is an apocalyptic number.

It is an amenable number.

5167915622981 is a deficient number, since it is larger than the sum of its proper divisors (1).

5167915622981 is an equidigital number, since it uses as much as digits as its factorization.

5167915622981 is an evil number, because the sum of its binary digits is even.

The product of its digits is 16329600, while the sum is 62.

The spelling of 5167915622981 in words is "five trillion, one hundred sixty-seven billion, nine hundred fifteen million, six hundred twenty-two thousand, nine hundred eighty-one".