878875385434269 has 4 divisors (see below), whose sum is σ = 1171833847245696. Its totient is φ = 585916923622844.

The previous prime is 878875385434243. The next prime is 878875385434271. The reversal of 878875385434269 is 962434583578878.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 878875385434269 - 2¹¹ = 878875385432221 is a prime.

It is a super-2 number, since 2×878875385434269² (a number of 31 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (878875385434369) 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, 146479230905709 + ... + 146479230905714.

It is an arithmetic number, because the mean of its divisors is an integer number (292958461811424).

Almost surely, 2^{878875385434269} is an apocalyptic number.

It is an amenable number.

878875385434269 is a deficient number, since it is larger than the sum of its proper divisors (292958461811427).

878875385434269 is a wasteful number, since it uses less digits than its factorization.

878875385434269 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 292958461811426.

The product of its digits is 78033715200, while the sum is 87.

The spelling of 878875385434269 in words is "eight hundred seventy-eight trillion, eight hundred seventy-five billion, three hundred eighty-five million, four hundred thirty-four thousand, two hundred sixty-nine".