878158832640 has 352 divisors, whose sum is σ = 2977628428800. Its totient is φ = 220128608256.

The previous prime is 878158832543. The next prime is 878158832641. The reversal of 878158832640 is 46238851878.

It is a Harshad number since it is a multiple of its sum of digits (60).

It is not an unprimeable number, because it can be changed into a prime (878158832641) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 288013836 + ... + 288016884.

Almost surely, 2^878158832640 is an apocalyptic number.

878158832640 is a gapful number since it is divisible by the number (80) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 878158832640, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1488814214400).

878158832640 is an abundant number, since it is smaller than the sum of its proper divisors (2099469596160).

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

878158832640 is a wasteful number, since it uses less digits than its factorization.

878158832640 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4197 (or 4179 counting only the distinct ones).

The product of its (nonzero) digits is 20643840, while the sum is 60.

The spelling of 878158832640 in words is "eight hundred seventy-eight billion, one hundred fifty-eight million, eight hundred thirty-two thousand, six hundred forty".