6782319149 has 2 divisors, whose sum is σ = 6782319150. Its totient is φ = 6782319148.

The previous prime is 6782319119. The next prime is 6782319197. The reversal of 6782319149 is 9419132876.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 3578193124 + 3204126025 = 59818^2 + 56605^2 .

It is a cyclic number.

It is not a de Polignac number, because 6782319149 - 2¹⁶ = 6782253613 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 6782319097 and 6782319106.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (6782319119) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3391159574 + 3391159575.

It is an arithmetic number, because the mean of its divisors is an integer number (3391159575).

Almost surely, 2^6782319149 is an apocalyptic number.

It is an amenable number.

6782319149 is a deficient number, since it is larger than the sum of its proper divisors (1).

6782319149 is an equidigital number, since it uses as much as digits as its factorization.

6782319149 is an evil number, because the sum of its binary digits is even.

The product of its digits is 653184, while the sum is 50.

The square root of 6782319149 is about 82354.8368282034. The cubic root of 6782319149 is about 1892.8930385251.

The spelling of 6782319149 in words is "six billion, seven hundred eighty-two million, three hundred nineteen thousand, one hundred forty-nine".