878123298923 has 8 divisors (see below), whose sum is σ = 945678888000. Its totient is φ = 810568801728.

The previous prime is 878123298907. The next prime is 878123298931. The reversal of 878123298923 is 329892321878.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 878123298923 - 2⁴ = 878123298907 is a prime.

It is a super-3 number, since 3×878123298923³ (a number of 37 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

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

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (878123298023) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2285678 + ... + 2642076.

It is an arithmetic number, because the mean of its divisors is an integer number (118209861000).

Almost surely, 2^878123298923 is an apocalyptic number.

878123298923 is a deficient number, since it is larger than the sum of its proper divisors (67555589077).

878123298923 is a wasteful number, since it uses less digits than its factorization.

878123298923 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 545941.

The product of its digits is 20901888, while the sum is 62.

The spelling of 878123298923 in words is "eight hundred seventy-eight billion, one hundred twenty-three million, two hundred ninety-eight thousand, nine hundred twenty-three".