808125678878 has 8 divisors (see below), whose sum is σ = 1385358306672. Its totient is φ = 346339576656.

The previous prime is 808125678869. The next prime is 808125678881. The reversal of 808125678878 is 878876521808.

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

It is a super-2 number, since 2×808125678878² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 28861631375 + ... + 28861631402.

It is an arithmetic number, because the mean of its divisors is an integer number (173169788334).

Almost surely, 2^808125678878 is an apocalyptic number.

808125678878 is a deficient number, since it is larger than the sum of its proper divisors (577232627794).

808125678878 is a wasteful number, since it uses less digits than its factorization.

808125678878 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 57723262786.

The product of its (nonzero) digits is 96337920, while the sum is 68.

The spelling of 808125678878 in words is "eight hundred eight billion, one hundred twenty-five million, six hundred seventy-eight thousand, eight hundred seventy-eight".