4063651221 has 8 divisors (see below), whose sum is σ = 6192230464. Its totient is φ = 2322086400.

The previous prime is 4063651181. The next prime is 4063651259. The reversal of 4063651221 is 1221563604.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 4063651221 - 2⁶ = 4063651157 is a prime.

It is a super-2 number, since 2×4063651221² = 33026522491869581682, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4063651121) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 96753580 + ... + 96753621.

It is an arithmetic number, because the mean of its divisors is an integer number (774028808).

Almost surely, 2^4063651221 is an apocalyptic number.

It is an amenable number.

4063651221 is a deficient number, since it is larger than the sum of its proper divisors (2128579243).

4063651221 is a wasteful number, since it uses less digits than its factorization.

4063651221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 193507211.

The product of its (nonzero) digits is 8640, while the sum is 30.

The square root of 4063651221 is about 63746.7742007390. The cubic root of 4063651221 is about 1595.7767819772.

The spelling of 4063651221 in words is "four billion, sixty-three million, six hundred fifty-one thousand, two hundred twenty-one".