8210042961 has 16 divisors (see below), whose sum is σ = 11245583808. Its totient is φ = 5324011200.

The previous prime is 8210042921. The next prime is 8210042983. The reversal of 8210042961 is 1692400128.

It is not a de Polignac number, because 8210042961 - 2⁷ = 8210042833 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (8210042921) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 549966 + ... + 564696.

It is an arithmetic number, because the mean of its divisors is an integer number (702848988).

Almost surely, 2^8210042961 is an apocalyptic number.

It is an amenable number.

8210042961 is a deficient number, since it is larger than the sum of its proper divisors (3035540847).

8210042961 is a wasteful number, since it uses less digits than its factorization.

8210042961 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19792.

The product of its (nonzero) digits is 6912, while the sum is 33.

The square root of 8210042961 is about 90609.2873882142. The cubic root of 8210042961 is about 2017.3525884964.

The spelling of 8210042961 in words is "eight billion, two hundred ten million, forty-two thousand, nine hundred sixty-one".