87260181811211 has 2 divisors, whose sum is σ = 87260181811212. Its totient is φ = 87260181811210.

The previous prime is 87260181811163. The next prime is 87260181811241. The reversal of 87260181811211 is 11211818106278.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 87260181811211 - 2¹⁸ = 87260181549067 is a prime.

It is a super-2 number, since 2×87260181811211² (a number of 29 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (87260181811241) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 43630090905605 + 43630090905606.

It is an arithmetic number, because the mean of its divisors is an integer number (43630090905606).

Almost surely, 2^{87260181811211} is an apocalyptic number.

87260181811211 is a deficient number, since it is larger than the sum of its proper divisors (1).

87260181811211 is an equidigital number, since it uses as much as digits as its factorization.

87260181811211 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 86016, while the sum is 47.

Adding to 87260181811211 its reverse (11211818106278), we get a palindrome (98471999917489).

The spelling of 87260181811211 in words is "eighty-seven trillion, two hundred sixty billion, one hundred eighty-one million, eight hundred eleven thousand, two hundred eleven".