87328769566361 has 2 divisors, whose sum is σ = 87328769566362. Its totient is φ = 87328769566360.

The previous prime is 87328769566349. The next prime is 87328769566373. The reversal of 87328769566361 is 16366596782378.

It is a balanced prime because it is at equal distance from previous prime (87328769566349) and next prime (87328769566373).

It can be written as a sum of positive squares in only one way, i.e., 46999525584400 + 40329243981961 = 6855620^2 + 6350531^2 .

It is a cyclic number.

It is not a de Polignac number, because 87328769566361 - 2⁴⁶ = 16960025388697 is a prime.

It is not a weakly prime, because it can be changed into another prime (87328769566391) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 43664384783180 + 43664384783181.

It is an arithmetic number, because the mean of its divisors is an integer number (43664384783181).

Almost surely, 2^{87328769566361} is an apocalyptic number.

It is an amenable number.

87328769566361 is a deficient number, since it is larger than the sum of its proper divisors (1).

87328769566361 is an equidigital number, since it uses as much as digits as its factorization.

87328769566361 is an evil number, because the sum of its binary digits is even.

The product of its digits is 3292047360, while the sum is 77.

The spelling of 87328769566361 in words is "eighty-seven trillion, three hundred twenty-eight billion, seven hundred sixty-nine million, five hundred sixty-six thousand, three hundred sixty-one".