6497131819 has 2 divisors, whose sum is σ = 6497131820. Its totient is φ = 6497131818.

The previous prime is 6497131801. The next prime is 6497131831. The reversal of 6497131819 is 9181317946.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 6497131819 - 2¹³ = 6497123627 is a prime.

It is a super-2 number, since 2×6497131819² = 84425443746924497522, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (6497131889) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3248565909 + 3248565910.

It is an arithmetic number, because the mean of its divisors is an integer number (3248565910).

Almost surely, 2^6497131819 is an apocalyptic number.

6497131819 is a deficient number, since it is larger than the sum of its proper divisors (1).

6497131819 is an equidigital number, since it uses as much as digits as its factorization.

6497131819 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 326592, while the sum is 49.

The square root of 6497131819 is about 80604.7878168537. The cubic root of 6497131819 is about 1865.9810375727.

The spelling of 6497131819 in words is "six billion, four hundred ninety-seven million, one hundred thirty-one thousand, eight hundred nineteen".