878351768 has 128 divisors (see below), whose sum is σ = 2045952000. Its totient is φ = 345461760.

The previous prime is 878351759. The next prime is 878351777. The reversal of 878351768 is 867153878.

It is a Cunningham number, because it is equal to 29637²-1.

It is an interprime number because it is at equal distance from previous prime (878351759) and next prime (878351777).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 3674993 + ... + 3675231.

It is an arithmetic number, because the mean of its divisors is an integer number (15984000).

Almost surely, 2^878351768 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 878351768, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1022976000).

878351768 is an abundant number, since it is smaller than the sum of its proper divisors (1167600232).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

878351768 is a wasteful number, since it uses less digits than its factorization.

878351768 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 385 (or 381 counting only the distinct ones).

The product of its digits is 2257920, while the sum is 53.

The square root of 878351768 is about 29636.9999831292. Note that the first 4 decimals coincide. The cubic root of 878351768 is about 957.6853117732.

The spelling of 878351768 in words is "eight hundred seventy-eight million, three hundred fifty-one thousand, seven hundred sixty-eight".