87636189828097 has 2 divisors, whose sum is σ = 87636189828098. Its totient is φ = 87636189828096.

The previous prime is 87636189828059. The next prime is 87636189828133. The reversal of 87636189828097 is 79082898163678.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 70457825815056 + 17178364013041 = 8393916^2 + 4144679^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-87636189828097 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 87636189828097.

It is not a weakly prime, because it can be changed into another prime (87636189828017) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 43818094914048 + 43818094914049.

It is an arithmetic number, because the mean of its divisors is an integer number (43818094914049).

Almost surely, 2^{87636189828097} is an apocalyptic number.

It is an amenable number.

87636189828097 is a deficient number, since it is larger than the sum of its proper divisors (1).

87636189828097 is an equidigital number, since it uses as much as digits as its factorization.

87636189828097 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3511517184, while the sum is 82.

The spelling of 87636189828097 in words is "eighty-seven trillion, six hundred thirty-six billion, one hundred eighty-nine million, eight hundred twenty-eight thousand, ninety-seven".