87101852077 has 2 divisors, whose sum is σ = 87101852078. Its totient is φ = 87101852076.

The previous prime is 87101852059. The next prime is 87101852083. The reversal of 87101852077 is 77025810178.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 63416334276 + 23685517801 = 251826^2 + 153901^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-87101852077 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (87101852027) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 43550926038 + 43550926039.

It is an arithmetic number, because the mean of its divisors is an integer number (43550926039).

Almost surely, 2^87101852077 is an apocalyptic number.

It is an amenable number.

87101852077 is a deficient number, since it is larger than the sum of its proper divisors (1).

87101852077 is an equidigital number, since it uses as much as digits as its factorization.

87101852077 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 219520, while the sum is 46.

The spelling of 87101852077 in words is "eighty-seven billion, one hundred one million, eight hundred fifty-two thousand, seventy-seven".