6413543377 has 2 divisors, whose sum is σ = 6413543378. Its totient is φ = 6413543376.

The previous prime is 6413543359. The next prime is 6413543413. The reversal of 6413543377 is 7733453146.

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., 5516181441 + 897361936 = 74271^2 + 29956^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-6413543377 is a prime.

It is a super-2 number, since 2×6413543377² = 82267077297321128258, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (6413543177) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3206771688 + 3206771689.

It is an arithmetic number, because the mean of its divisors is an integer number (3206771689).

Almost surely, 2^6413543377 is an apocalyptic number.

It is an amenable number.

6413543377 is a deficient number, since it is larger than the sum of its proper divisors (1).

6413543377 is an equidigital number, since it uses as much as digits as its factorization.

6413543377 is an evil number, because the sum of its binary digits is even.

The product of its digits is 635040, while the sum is 43.

The square root of 6413543377 is about 80084.6013725485. The cubic root of 6413543377 is about 1857.9442521345.

The spelling of 6413543377 in words is "six billion, four hundred thirteen million, five hundred forty-three thousand, three hundred seventy-seven".