4634645821 has 8 divisors (see below), whose sum is σ = 5075753760. Its totient is φ = 4205623152.

The previous prime is 4634645819. The next prime is 4634645857. The reversal of 4634645821 is 1285464364.

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

It is a cyclic number.

It is not a de Polignac number, because 4634645821 - 2¹ = 4634645819 is a prime.

It is a super-2 number, since 2×4634645821² = 42959883772225528082, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4634645891) 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, 3020515 + ... + 3022048.

It is an arithmetic number, because the mean of its divisors is an integer number (634469220).

Almost surely, 2^4634645821 is an apocalyptic number.

It is an amenable number.

4634645821 is a deficient number, since it is larger than the sum of its proper divisors (441107939).

4634645821 is a wasteful number, since it uses less digits than its factorization.

4634645821 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6042635.

The product of its digits is 552960, while the sum is 43.

The square root of 4634645821 is about 68078.2330925238. The cubic root of 4634645821 is about 1667.2683923607.

The spelling of 4634645821 in words is "four billion, six hundred thirty-four million, six hundred forty-five thousand, eight hundred twenty-one".