878045551087 has 2 divisors, whose sum is σ = 878045551088. Its totient is φ = 878045551086.

The previous prime is 878045551073. The next prime is 878045551091. The reversal of 878045551087 is 780155540878.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 878045551087 - 2¹⁹ = 878045026799 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (878045551057) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 439022775543 + 439022775544.

It is an arithmetic number, because the mean of its divisors is an integer number (439022775544).

Almost surely, 2^878045551087 is an apocalyptic number.

878045551087 is a deficient number, since it is larger than the sum of its proper divisors (1).

878045551087 is an equidigital number, since it uses as much as digits as its factorization.

878045551087 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 12544000, while the sum is 58.

The spelling of 878045551087 in words is "eight hundred seventy-eight billion, forty-five million, five hundred fifty-one thousand, eighty-seven".