87000586261 has 2 divisors, whose sum is σ = 87000586262. Its totient is φ = 87000586260.

The previous prime is 87000586223. The next prime is 87000586291. The reversal of 87000586261 is 16268500078.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 53257100625 + 33743485636 = 230775^2 + 183694^2 .

It is a cyclic number.

It is not a de Polignac number, because 87000586261 - 2⁷ = 87000586133 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (87000586201) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 43500293130 + 43500293131.

It is an arithmetic number, because the mean of its divisors is an integer number (43500293131).

Almost surely, 2^87000586261 is an apocalyptic number.

It is an amenable number.

87000586261 is a deficient number, since it is larger than the sum of its proper divisors (1).

87000586261 is an equidigital number, since it uses as much as digits as its factorization.

87000586261 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 161280, while the sum is 43.

The spelling of 87000586261 in words is "eighty-seven billion, five hundred eighty-six thousand, two hundred sixty-one".