87758489041 has 2 divisors, whose sum is σ = 87758489042. Its totient is φ = 87758489040.

The previous prime is 87758489023. The next prime is 87758489051. The reversal of 87758489041 is 14098485778.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 63501984016 + 24256505025 = 251996^2 + 155745^2 .

It is a cyclic number.

It is not a de Polignac number, because 87758489041 - 2⁵ = 87758489009 is a prime.

It is not a weakly prime, because it can be changed into another prime (87758489011) 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, 43879244520 + 43879244521.

It is an arithmetic number, because the mean of its divisors is an integer number (43879244521).

Almost surely, 2^87758489041 is an apocalyptic number.

It is an amenable number.

87758489041 is a deficient number, since it is larger than the sum of its proper divisors (1).

87758489041 is an equidigital number, since it uses as much as digits as its factorization.

87758489041 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 18063360, while the sum is 61.

The spelling of 87758489041 in words is "eighty-seven billion, seven hundred fifty-eight million, four hundred eighty-nine thousand, forty-one".