878308783487 has 2 divisors, whose sum is σ = 878308783488. Its totient is φ = 878308783486.

The previous prime is 878308783477. The next prime is 878308783531. The reversal of 878308783487 is 784387803878.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 878308783487 - 2³⁶ = 809589306751 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 878308783487.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (878308783427) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 439154391743 + 439154391744.

It is an arithmetic number, because the mean of its divisors is an integer number (439154391744).

Almost surely, 2^878308783487 is an apocalyptic number.

878308783487 is a deficient number, since it is larger than the sum of its proper divisors (1).

878308783487 is an equidigital number, since it uses as much as digits as its factorization.

878308783487 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 404619264, while the sum is 71.

The spelling of 878308783487 in words is "eight hundred seventy-eight billion, three hundred eight million, seven hundred eighty-three thousand, four hundred eighty-seven".