4648513421 has 2 divisors, whose sum is σ = 4648513422. Its totient is φ = 4648513420.

The previous prime is 4648513403. The next prime is 4648513423. The reversal of 4648513421 is 1243158464.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 4223700100 + 424813321 = 64990^2 + 20611^2 .

It is a cyclic number.

It is not a de Polignac number, because 4648513421 - 2²² = 4644319117 is a prime.

Together with 4648513423, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (4648513423) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2324256710 + 2324256711.

It is an arithmetic number, because the mean of its divisors is an integer number (2324256711).

Almost surely, 2^4648513421 is an apocalyptic number.

It is an amenable number.

4648513421 is a deficient number, since it is larger than the sum of its proper divisors (1).

4648513421 is an equidigital number, since it uses as much as digits as its factorization.

4648513421 is an evil number, because the sum of its binary digits is even.

The product of its digits is 92160, while the sum is 38.

The square root of 4648513421 is about 68180.0074875326. The cubic root of 4648513421 is about 1668.9296475908.

The spelling of 4648513421 in words is "four billion, six hundred forty-eight million, five hundred thirteen thousand, four hundred twenty-one".