6499379236997 has 2 divisors, whose sum is σ = 6499379236998. Its totient is φ = 6499379236996.

The previous prime is 6499379236963. The next prime is 6499379237009. The reversal of 6499379236997 is 7996329739946.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 5797929436321 + 701449800676 = 2407889^2 + 837526^2 .

It is a cyclic number.

It is not a de Polignac number, because 6499379236997 - 2¹² = 6499379232901 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (6499379236957) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3249689618498 + 3249689618499.

It is an arithmetic number, because the mean of its divisors is an integer number (3249689618499).

Almost surely, 2^{6499379236997} is an apocalyptic number.

It is an amenable number.

6499379236997 is a deficient number, since it is larger than the sum of its proper divisors (1).

6499379236997 is an equidigital number, since it uses as much as digits as its factorization.

6499379236997 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 7499695392, while the sum is 83.

It can be divided in two parts, 6499379 and 236997, that added together give a palindrome (6736376).

The spelling of 6499379236997 in words is "six trillion, four hundred ninety-nine billion, three hundred seventy-nine million, two hundred thirty-six thousand, nine hundred ninety-seven".