4661627421 has 8 divisors (see below), whose sum is σ = 6780549024. Its totient is φ = 2825228720.

The previous prime is 4661627413. The next prime is 4661627437. The reversal of 4661627421 is 1247261664.

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 4661627421 - 2³ = 4661627413 is a prime.

It is a super-2 number, since 2×4661627421² = 43461540424438222482, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 4661627421.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4661627021) 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, 70630686 + ... + 70630751.

It is an arithmetic number, because the mean of its divisors is an integer number (847568628).

Almost surely, 2^4661627421 is an apocalyptic number.

It is an amenable number.

4661627421 is a deficient number, since it is larger than the sum of its proper divisors (2118921603).

4661627421 is a wasteful number, since it uses less digits than its factorization.

4661627421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 141261451.

The product of its digits is 96768, while the sum is 39.

The square root of 4661627421 is about 68276.1116423600. Note that the first 3 decimals coincide. The cubic root of 4661627421 is about 1670.4975893035.

The spelling of 4661627421 in words is "four billion, six hundred sixty-one million, six hundred twenty-seven thousand, four hundred twenty-one".