878987898787 has 2 divisors, whose sum is σ = 878987898788. Its totient is φ = 878987898786.

The previous prime is 878987898781. The next prime is 878987898827. The reversal of 878987898787 is 787898789878.

878987898787 is an esthetic number in base 10, because in such base its adjacent digits differ by 1.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 878987898787 - 2²⁷ = 878853681059 is a prime.

It is an alternating number because its digits alternate between even and odd.

It is a junction number, because it is equal to n+sod(n) for n = 878987898695 and 878987898704.

It is not a weakly prime, because it can be changed into another prime (878987898781) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 439493949393 + 439493949394.

It is an arithmetic number, because the mean of its divisors is an integer number (439493949394).

Almost surely, 2^878987898787 is an apocalyptic number.

878987898787 is a deficient number, since it is larger than the sum of its proper divisors (1).

878987898787 is an equidigital number, since it uses as much as digits as its factorization.

878987898787 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 50982027264, while the sum is 94.

The spelling of 878987898787 in words is "eight hundred seventy-eight billion, nine hundred eighty-seven million, eight hundred ninety-eight thousand, seven hundred eighty-seven".