6498457877 has 2 divisors, whose sum is σ = 6498457878. Its totient is φ = 6498457876.

The previous prime is 6498457871. The next prime is 6498457879. The reversal of 6498457877 is 7787548946.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 5470229521 + 1028228356 = 73961^2 + 32066^2 .

It is a cyclic number.

It is not a de Polignac number, because 6498457877 - 2⁶ = 6498457813 is a prime.

Together with 6498457879, 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 (6498457871) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3249228938 + 3249228939.

It is an arithmetic number, because the mean of its divisors is an integer number (3249228939).

Almost surely, 2^6498457877 is an apocalyptic number.

It is an amenable number.

6498457877 is a deficient number, since it is larger than the sum of its proper divisors (1).

6498457877 is an equidigital number, since it uses as much as digits as its factorization.

6498457877 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 94832640, while the sum is 65.

The square root of 6498457877 is about 80613.0130748132. The cubic root of 6498457877 is about 1866.1079772146.

The spelling of 6498457877 in words is "six billion, four hundred ninety-eight million, four hundred fifty-seven thousand, eight hundred seventy-seven".