878987898704 has 40 divisors (see below), whose sum is σ = 1804685731560. Its totient is φ = 413304639488.

The previous prime is 878987898671. The next prime is 878987898707. The reversal of 878987898704 is 407898789878.

It can be written as a sum of positive squares in 4 ways, for example, as 275961102400 + 603026796304 = 525320^2 + 776548^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (878987898707) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 980429 + ... + 1649004.

It is an arithmetic number, because the mean of its divisors is an integer number (45117143289).

Almost surely, 2^878987898704 is an apocalyptic number.

It is an amenable number.

878987898704 is an abundant number, since it is smaller than the sum of its proper divisors (925697832856).

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

878987898704 is a wasteful number, since it uses less digits than its factorization.

878987898704 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2630687 (or 2630681 counting only the distinct ones).

The product of its (nonzero) digits is 3641573376, while the sum is 83.

The spelling of 878987898704 in words is "eight hundred seventy-eight billion, nine hundred eighty-seven million, eight hundred ninety-eight thousand, seven hundred four".