878118439680 has 324 divisors, whose sum is σ = 3139405804080. Its totient is φ = 226608353280.

The previous prime is 878118439621. The next prime is 878118439687. The reversal of 878118439680 is 86934811878.

878118439680 is a `hidden beast` number, since 8 + 7 + 8 + 118 + 439 + 6 + 80 = 666.

It is not an unprimeable number, because it can be changed into a prime (878118439687) by changing a digit.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 11031061 + ... + 11110379.

Almost surely, 2^878118439680 is an apocalyptic number.

878118439680 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 878118439680, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1569702902040).

878118439680 is an abundant number, since it is smaller than the sum of its proper divisors (2261287364400).

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

878118439680 is a wasteful number, since it uses less digits than its factorization.

878118439680 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 79408 (or 79360 counting only the distinct ones).

The product of its (nonzero) digits is 18579456, while the sum is 63.

The spelling of 878118439680 in words is "eight hundred seventy-eight billion, one hundred eighteen million, four hundred thirty-nine thousand, six hundred eighty".