878889834379 has 4 divisors (see below), whose sum is σ = 878944046184. Its totient is φ = 878835622576.

The previous prime is 878889834341. The next prime is 878889834439. The reversal of 878889834379 is 973438988878.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 973438988878 = 2 ⋅486719494439.

It is a cyclic number.

It is not a de Polignac number, because 878889834379 - 2²¹ = 878887737227 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (878889834079) 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, 27081577 + ... + 27114010.

It is an arithmetic number, because the mean of its divisors is an integer number (219736011546).

Almost surely, 2^878889834379 is an apocalyptic number.

878889834379 is a deficient number, since it is larger than the sum of its proper divisors (54211805).

878889834379 is a wasteful number, since it uses less digits than its factorization.

878889834379 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 54211804.

The product of its digits is 4682022912, while the sum is 82.

The spelling of 878889834379 in words is "eight hundred seventy-eight billion, eight hundred eighty-nine million, eight hundred thirty-four thousand, three hundred seventy-nine".