2421656271 has 20 divisors (see below), whose sum is σ = 3630917664. Its totient is φ = 1608465600.

The previous prime is 2421656261. The next prime is 2421656297. The reversal of 2421656271 is 1726561242.

It is a happy number.

2421656271 is a `hidden beast` number, since 2 + 4 + 21 + 6 + 5 + 627 + 1 = 666.

2421656271 is digitally balanced in base 2 and base 4, because in such bases it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 2421656271 - 2¹¹ = 2421654223 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2421656201) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 33210 + ... + 77111.

Almost surely, 2^2421656271 is an apocalyptic number.

2421656271 is a deficient number, since it is larger than the sum of its proper divisors (1209261393).

2421656271 is a wasteful number, since it uses less digits than its factorization.

2421656271 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 110604 (or 110595 counting only the distinct ones).

The product of its digits is 40320, while the sum is 36.

The square root of 2421656271 is about 49210.3268735334. The cubic root of 2421656271 is about 1342.8809093602.

The spelling of 2421656271 in words is "two billion, four hundred twenty-one million, six hundred fifty-six thousand, two hundred seventy-one".