194986872080 has 480 divisors, whose sum is σ = 624323790720. Its totient is φ = 55668695040.

The previous prime is 194986872013. The next prime is 194986872089. The reversal of 194986872080 is 80278689491.

It is not an unprimeable number, because it can be changed into a prime (194986872089) by changing a digit.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 76795451 + ... + 76797989.

It is an arithmetic number, because the mean of its divisors is an integer number (1300674564).

Almost surely, 2^194986872080 is an apocalyptic number.

194986872080 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 194986872080, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (312161895360).

194986872080 is an abundant number, since it is smaller than the sum of its proper divisors (429336918640).

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

194986872080 is a wasteful number, since it uses less digits than its factorization.

194986872080 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2727 (or 2714 counting only the distinct ones).

The product of its (nonzero) digits is 13934592, while the sum is 62.

The spelling of 194986872080 in words is "one hundred ninety-four billion, nine hundred eighty-six million, eight hundred seventy-two thousand, eighty".