18708878880 has 192 divisors, whose sum is σ = 66157620480. Its totient is φ = 4937490432.

The previous prime is 18708878873. The next prime is 18708878899. The reversal of 18708878880 is 8887880781.

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, 396717 + ... + 441363.

It is an arithmetic number, because the mean of its divisors is an integer number (344570940).

Almost surely, 2^18708878880 is an apocalyptic number.

18708878880 is a gapful number since it is divisible by the number (10) 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 18708878880, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (33078810240).

18708878880 is an abundant number, since it is smaller than the sum of its proper divisors (47448741600).

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

18708878880 is a wasteful number, since it uses less digits than its factorization.

18708878880 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 44768 (or 44754 counting only the distinct ones).

The product of its (nonzero) digits is 12845056, while the sum is 63.

The spelling of 18708878880 in words is "eighteen billion, seven hundred eight million, eight hundred seventy-eight thousand, eight hundred eighty".