87948564526129 has 2 divisors, whose sum is σ = 87948564526130. Its totient is φ = 87948564526128.

The previous prime is 87948564526093. The next prime is 87948564526181. The reversal of 87948564526129 is 92162546584978.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 66268179837729 + 21680384688400 = 8140527^2 + 4656220^2 .

It is a cyclic number.

It is not a de Polignac number, because 87948564526129 - 2¹⁹ = 87948564001841 is a prime.

It is not a weakly prime, because it can be changed into another prime (87948564526189) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 43974282263064 + 43974282263065.

It is an arithmetic number, because the mean of its divisors is an integer number (43974282263065).

Almost surely, 2^{87948564526129} is an apocalyptic number.

It is an amenable number.

87948564526129 is a deficient number, since it is larger than the sum of its proper divisors (1).

87948564526129 is an equidigital number, since it uses as much as digits as its factorization.

87948564526129 is an evil number, because the sum of its binary digits is even.

The product of its digits is 2090188800, while the sum is 76.

The spelling of 87948564526129 in words is "eighty-seven trillion, nine hundred forty-eight billion, five hundred sixty-four million, five hundred twenty-six thousand, one hundred twenty-nine".