6764137669 has 2 divisors, whose sum is σ = 6764137670. Its totient is φ = 6764137668.

The previous prime is 6764137663. The next prime is 6764137687. The reversal of 6764137669 is 9667314676.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 4509122500 + 2255015169 = 67150^2 + 47487^2 .

It is a cyclic number.

It is not a de Polignac number, because 6764137669 - 2¹⁵ = 6764104901 is a prime.

It is a super-2 number, since 2×6764137669² = 91507116810369507122, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (6764137663) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3382068834 + 3382068835.

It is an arithmetic number, because the mean of its divisors is an integer number (3382068835).

Almost surely, 2^6764137669 is an apocalyptic number.

It is an amenable number.

6764137669 is a deficient number, since it is larger than the sum of its proper divisors (1).

6764137669 is an equidigital number, since it uses as much as digits as its factorization.

6764137669 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 6858432, while the sum is 55.

The square root of 6764137669 is about 82244.3777348944. The cubic root of 6764137669 is about 1891.2000878359.

The spelling of 6764137669 in words is "six billion, seven hundred sixty-four million, one hundred thirty-seven thousand, six hundred sixty-nine".