878187518264 has 128 divisors (see below), whose sum is σ = 1977192806400. Its totient is φ = 357707750400.

The previous prime is 878187518261. The next prime is 878187518279. The reversal of 878187518264 is 462815781878.

It is a self number, because there is not a number n which added to its sum of digits gives 878187518264.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (878187518261) by changing a digit.

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 31 ways as a sum of consecutive naturals, for example, 255805892 + ... + 255809324.

It is an arithmetic number, because the mean of its divisors is an integer number (15446818800).

Almost surely, 2^878187518264 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 878187518264, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (988596403200).

878187518264 is an abundant number, since it is smaller than the sum of its proper divisors (1099005288136).

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

878187518264 is a wasteful number, since it uses less digits than its factorization.

878187518264 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5893 (or 5889 counting only the distinct ones).

The product of its digits is 48168960, while the sum is 65.

The spelling of 878187518264 in words is "eight hundred seventy-eight billion, one hundred eighty-seven million, five hundred eighteen thousand, two hundred sixty-four".