8041425721 has 12 divisors (see below), whose sum is σ = 9472725120. Its totient is φ = 6805398600.

The previous prime is 8041425713. The next prime is 8041425737. The reversal of 8041425721 is 1275241408.

It is not a de Polignac number, because 8041425721 - 2³ = 8041425713 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (8041425521) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1034805 + ... + 1042546.

It is an arithmetic number, because the mean of its divisors is an integer number (789393760).

Almost surely, 2^8041425721 is an apocalyptic number.

It is an amenable number.

8041425721 is a deficient number, since it is larger than the sum of its proper divisors (1431299399).

8041425721 is a wasteful number, since it uses less digits than its factorization.

8041425721 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2077444 (or 2077437 counting only the distinct ones).

The product of its (nonzero) digits is 17920, while the sum is 34.

The square root of 8041425721 is about 89673.9969054575. The cubic root of 8041425721 is about 2003.4462018524.

The spelling of 8041425721 in words is "eight billion, forty-one million, four hundred twenty-five thousand, seven hundred twenty-one".