82111760651 has 2 divisors, whose sum is σ = 82111760652. Its totient is φ = 82111760650.

The previous prime is 82111760611. The next prime is 82111760693. The reversal of 82111760651 is 15606711128.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 82111760651 - 2¹⁰ = 82111759627 is a prime.

It is a super-2 number, since 2×82111760651² (a number of 23 digits) contains 22 as substring.

It is a Sophie Germain prime.

It is not a weakly prime, because it can be changed into another prime (82111760611) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 41055880325 + 41055880326.

It is an arithmetic number, because the mean of its divisors is an integer number (41055880326).

Almost surely, 2^82111760651 is an apocalyptic number.

82111760651 is a deficient number, since it is larger than the sum of its proper divisors (1).

82111760651 is an equidigital number, since it uses as much as digits as its factorization.

82111760651 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 20160, while the sum is 38.

The spelling of 82111760651 in words is "eighty-two billion, one hundred eleven million, seven hundred sixty thousand, six hundred fifty-one".