4181894946 has 64 divisors (see below), whose sum is σ = 10119600000. Its totient is φ = 1275051456.

The previous prime is 4181894879. The next prime is 4181894963. The reversal of 4181894946 is 6494981814.

It is a happy number.

4181894946 is a `hidden beast` number, since 418 + 189 + 4 + 9 + 46 = 666.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 4181894892 and 4181894901.

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, 40521 + ... + 100028.

It is an arithmetic number, because the mean of its divisors is an integer number (158118750).

Almost surely, 2^4181894946 is an apocalyptic number.

4181894946 is an abundant number, since it is smaller than the sum of its proper divisors (5937705054).

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

4181894946 is a wasteful number, since it uses less digits than its factorization.

4181894946 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 140608 (or 140602 counting only the distinct ones).

The product of its digits is 1990656, while the sum is 54.

The square root of 4181894946 is about 64667.5726001835. The cubic root of 4181894946 is about 1611.1069565461.

The spelling of 4181894946 in words is "four billion, one hundred eighty-one million, eight hundred ninety-four thousand, nine hundred forty-six".