87225651277 has 2 divisors, whose sum is σ = 87225651278. Its totient is φ = 87225651276.

The previous prime is 87225651217. The next prime is 87225651299. The reversal of 87225651277 is 77215652278.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 83805039081 + 3420612196 = 289491^2 + 58486^2 .

It is a cyclic number.

It is not a de Polignac number, because 87225651277 - 2¹¹ = 87225649229 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (87225651217) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 43612825638 + 43612825639.

It is an arithmetic number, because the mean of its divisors is an integer number (43612825639).

Almost surely, 2^87225651277 is an apocalyptic number.

It is an amenable number.

87225651277 is a deficient number, since it is larger than the sum of its proper divisors (1).

87225651277 is an equidigital number, since it uses as much as digits as its factorization.

87225651277 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 3292800, while the sum is 52.

The spelling of 87225651277 in words is "eighty-seven billion, two hundred twenty-five million, six hundred fifty-one thousand, two hundred seventy-seven".