4894209901971 has 24 divisors (see below), whose sum is σ = 7613492848416. Its totient is φ = 3011711719680.

The previous prime is 4894209901969. The next prime is 4894209902003. The reversal of 4894209901971 is 1791099024984.

4894209901971 is a `hidden beast` number, since 48 + 9 + 420 + 9 + 90 + 19 + 71 = 666.

It is not a de Polignac number, because 4894209901971 - 2¹ = 4894209901969 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 4894209901899 and 4894209901908.

It is not an unprimeable number, because it can be changed into a prime (4894209901951) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 2522266 + ... + 4018736.

It is an arithmetic number, because the mean of its divisors is an integer number (317228868684).

Almost surely, 2^{4894209901971} is an apocalyptic number.

4894209901971 is a deficient number, since it is larger than the sum of its proper divisors (2719282946445).

4894209901971 is a wasteful number, since it uses less digits than its factorization.

4894209901971 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1524443 (or 1524440 counting only the distinct ones).

The product of its (nonzero) digits is 11757312, while the sum is 63.

The spelling of 4894209901971 in words is "four trillion, eight hundred ninety-four billion, two hundred nine million, nine hundred one thousand, nine hundred seventy-one".