87275805427 has 2 divisors, whose sum is σ = 87275805428. Its totient is φ = 87275805426.

The previous prime is 87275805413. The next prime is 87275805437. The reversal of 87275805427 is 72450857278.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 87275805427 - 2³¹ = 85128321779 is a prime.

It is not a weakly prime, because it can be changed into another prime (87275805437) 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, 43637902713 + 43637902714.

It is an arithmetic number, because the mean of its divisors is an integer number (43637902714).

Almost surely, 2^87275805427 is an apocalyptic number.

87275805427 is a deficient number, since it is larger than the sum of its proper divisors (1).

87275805427 is an equidigital number, since it uses as much as digits as its factorization.

87275805427 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 8780800, while the sum is 55.

The spelling of 87275805427 in words is "eighty-seven billion, two hundred seventy-five million, eight hundred five thousand, four hundred twenty-seven".