87695876376917 has 2 divisors, whose sum is σ = 87695876376918. Its totient is φ = 87695876376916.

The previous prime is 87695876376881. The next prime is 87695876376947. The reversal of 87695876376917 is 71967367859678.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 80437777001521 + 7258099375396 = 8968711^2 + 2694086^2 .

It is a cyclic number.

It is not a de Polignac number, because 87695876376917 - 2¹⁰ = 87695876375893 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (87695876376947) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 43847938188458 + 43847938188459.

It is an arithmetic number, because the mean of its divisors is an integer number (43847938188459).

Almost surely, 2^{87695876376917} is an apocalyptic number.

It is an amenable number.

87695876376917 is a deficient number, since it is larger than the sum of its proper divisors (1).

87695876376917 is an equidigital number, since it uses as much as digits as its factorization.

87695876376917 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 40327580160, while the sum is 89.

The spelling of 87695876376917 in words is "eighty-seven trillion, six hundred ninety-five billion, eight hundred seventy-six million, three hundred seventy-six thousand, nine hundred seventeen".