878081288605 has 16 divisors (see below), whose sum is σ = 1059872971824. Its totient is φ = 698348730880.

The previous prime is 878081288573. The next prime is 878081288611. The reversal of 878081288605 is 506882180878.

It can be written as a sum of positive squares in 8 ways, for example, as 109827285604 + 768254003001 = 331402^2 + 876501^2 .

It is not a de Polignac number, because 878081288605 - 2⁵ = 878081288573 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 13340937 + ... + 13406593.

It is an arithmetic number, because the mean of its divisors is an integer number (66242060739).

Almost surely, 2^878081288605 is an apocalyptic number.

It is an amenable number.

878081288605 is a deficient number, since it is larger than the sum of its proper divisors (181791683219).

878081288605 is a wasteful number, since it uses less digits than its factorization.

878081288605 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 81296.

The product of its (nonzero) digits is 13762560, while the sum is 61.

The spelling of 878081288605 in words is "eight hundred seventy-eight billion, eighty-one million, two hundred eighty-eight thousand, six hundred five".