6457380481 has 2 divisors, whose sum is σ = 6457380482. Its totient is φ = 6457380480.

The previous prime is 6457380443. The next prime is 6457380499. The reversal of 6457380481 is 1840837546.

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., 5038728256 + 1418652225 = 70984^2 + 37665^2 .

It is a cyclic number.

It is not a de Polignac number, because 6457380481 - 2⁷ = 6457380353 is a prime.

It is a super-2 number, since 2×6457380481² = 83395525352799582722, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (6457380581) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3228690240 + 3228690241.

It is an arithmetic number, because the mean of its divisors is an integer number (3228690241).

Almost surely, 2^6457380481 is an apocalyptic number.

It is an amenable number.

6457380481 is a deficient number, since it is larger than the sum of its proper divisors (1).

6457380481 is an equidigital number, since it uses as much as digits as its factorization.

6457380481 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 645120, while the sum is 46.

The square root of 6457380481 is about 80357.8277518749. The cubic root of 6457380481 is about 1862.1677121179.

The spelling of 6457380481 in words is "six billion, four hundred fifty-seven million, three hundred eighty thousand, four hundred eighty-one".