6448722601 has 2 divisors, whose sum is σ = 6448722602. Its totient is φ = 6448722600.

The previous prime is 6448722587. The next prime is 6448722629. The reversal of 6448722601 is 1062278446.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 5227290000 + 1221432601 = 72300^2 + 34949^2 .

It is a cyclic number.

It is not a de Polignac number, because 6448722601 - 2⁹ = 6448722089 is a prime.

It is not a weakly prime, because it can be changed into another prime (6448720601) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3224361300 + 3224361301.

It is an arithmetic number, because the mean of its divisors is an integer number (3224361301).

Almost surely, 2^6448722601 is an apocalyptic number.

It is an amenable number.

6448722601 is a deficient number, since it is larger than the sum of its proper divisors (1).

6448722601 is an equidigital number, since it uses as much as digits as its factorization.

6448722601 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 129024, while the sum is 40.

The square root of 6448722601 is about 80303.9388884505. The cubic root of 6448722601 is about 1861.3350919600.

The spelling of 6448722601 in words is "six billion, four hundred forty-eight million, seven hundred twenty-two thousand, six hundred one".