4648668461 has 2 divisors, whose sum is σ = 4648668462. Its totient is φ = 4648668460.

The previous prime is 4648668443. The next prime is 4648668487. The reversal of 4648668461 is 1648668464.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 4211231236 + 437437225 = 64894^2 + 20915^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-4648668461 is a prime.

It is a super-2 number, since 2×4648668461² = 43220236920592217042, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (4648668491) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2324334230 + 2324334231.

It is an arithmetic number, because the mean of its divisors is an integer number (2324334231).

Almost surely, 2^4648668461 is an apocalyptic number.

It is an amenable number.

4648668461 is a deficient number, since it is larger than the sum of its proper divisors (1).

4648668461 is an equidigital number, since it uses as much as digits as its factorization.

4648668461 is an evil number, because the sum of its binary digits is even.

The product of its digits is 5308416, while the sum is 53.

The square root of 4648668461 is about 68181.1444682472. The cubic root of 4648668461 is about 1668.9482017645.

The spelling of 4648668461 in words is "four billion, six hundred forty-eight million, six hundred sixty-eight thousand, four hundred sixty-one".