4646162421 has 12 divisors (see below), whose sum is σ = 6737240172. Its totient is φ = 3085387776.

The previous prime is 4646162401. The next prime is 4646162429. The reversal of 4646162421 is 1242616464.

4646162421 is a `hidden beast` number, since 4 + 6 + 4 + 6 + 1 + 624 + 21 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 3515185521 + 1130976900 = 59289^2 + 33630^2 .

It is not a de Polignac number, because 4646162421 - 2⁹ = 4646161909 is a prime.

It is a super-3 number, since 3×4646162421³ (a number of 30 digits) contains 333 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4646162429) 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, 1002046 + ... + 1006671.

It is an arithmetic number, because the mean of its divisors is an integer number (561436681).

Almost surely, 2^4646162421 is an apocalyptic number.

It is an amenable number.

4646162421 is a deficient number, since it is larger than the sum of its proper divisors (2091077751).

4646162421 is a wasteful number, since it uses less digits than its factorization.

4646162421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2008980 (or 2008977 counting only the distinct ones).

The product of its digits is 55296, while the sum is 36.

The square root of 4646162421 is about 68162.7641825066. The cubic root of 4646162421 is about 1668.6482447065.

Adding to 4646162421 its reverse (1242616464), we get a palindrome (5888778885).

The spelling of 4646162421 in words is "four billion, six hundred forty-six million, one hundred sixty-two thousand, four hundred twenty-one".