4271821652 has 24 divisors (see below), whose sum is σ = 8752027200. Its totient is φ = 1786127040.

The previous prime is 4271821651. The next prime is 4271821679. The reversal of 4271821652 is 2561281724.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4271821651) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1859402 + ... + 1861697.

It is an arithmetic number, because the mean of its divisors is an integer number (364667800).

Almost surely, 2^4271821652 is an apocalyptic number.

It is an amenable number.

4271821652 is an abundant number, since it is smaller than the sum of its proper divisors (4480205548).

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

4271821652 is a wasteful number, since it uses less digits than its factorization.

4271821652 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3721151 (or 3721149 counting only the distinct ones).

The product of its digits is 53760, while the sum is 38.

The square root of 4271821652 is about 65359.1741991895. The cubic root of 4271821652 is about 1622.5734705568.

The spelling of 4271821652 in words is "four billion, two hundred seventy-one million, eight hundred twenty-one thousand, six hundred fifty-two".