878202402811 has 4 divisors (see below), whose sum is σ = 880972757712. Its totient is φ = 875432047912.

The previous prime is 878202402809. The next prime is 878202402823. The reversal of 878202402811 is 118204202878.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 878202402811 - 2¹ = 878202402809 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (878202402871) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1385176975 + ... + 1385177608.

It is an arithmetic number, because the mean of its divisors is an integer number (220243189428).

Almost surely, 2^878202402811 is an apocalyptic number.

878202402811 is a deficient number, since it is larger than the sum of its proper divisors (2770354901).

878202402811 is a wasteful number, since it uses less digits than its factorization.

878202402811 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2770354900.

The product of its (nonzero) digits is 114688, while the sum is 43.

The spelling of 878202402811 in words is "eight hundred seventy-eight billion, two hundred two million, four hundred two thousand, eight hundred eleven".