4457721311 has 2 divisors, whose sum is σ = 4457721312. Its totient is φ = 4457721310.

The previous prime is 4457721277. The next prime is 4457721313. The reversal of 4457721311 is 1131277544.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-4457721311 is a prime.

Together with 4457721313, 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 (4457721313) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2228860655 + 2228860656.

It is an arithmetic number, because the mean of its divisors is an integer number (2228860656).

Almost surely, 2^4457721311 is an apocalyptic number.

4457721311 is a deficient number, since it is larger than the sum of its proper divisors (1).

4457721311 is an equidigital number, since it uses as much as digits as its factorization.

4457721311 is an evil number, because the sum of its binary digits is even.

The product of its digits is 23520, while the sum is 35.

The square root of 4457721311 is about 66766.1689106092. The cubic root of 4457721311 is about 1645.7769337726.

Adding to 4457721311 its reverse (1131277544), we get a palindrome (5588998855).

The spelling of 4457721311 in words is "four billion, four hundred fifty-seven million, seven hundred twenty-one thousand, three hundred eleven".