87428068837 has 2 divisors, whose sum is σ = 87428068838. Its totient is φ = 87428068836.

The previous prime is 87428068817. The next prime is 87428068927. The reversal of 87428068837 is 73886082478.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 60057344356 + 27370724481 = 245066^2 + 165441^2 .

It is a cyclic number.

It is not a de Polignac number, because 87428068837 - 2¹⁹ = 87427544549 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (87428068817) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 43714034418 + 43714034419.

It is an arithmetic number, because the mean of its divisors is an integer number (43714034419).

Almost surely, 2^87428068837 is an apocalyptic number.

It is an amenable number.

87428068837 is a deficient number, since it is larger than the sum of its proper divisors (1).

87428068837 is an equidigital number, since it uses as much as digits as its factorization.

87428068837 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 28901376, while the sum is 61.

The spelling of 87428068837 in words is "eighty-seven billion, four hundred twenty-eight million, sixty-eight thousand, eight hundred thirty-seven".