6782936191 has 2 divisors, whose sum is σ = 6782936192. Its totient is φ = 6782936190.

The previous prime is 6782936137. The next prime is 6782936197. The reversal of 6782936191 is 1916392876.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 6782936191 - 2¹⁷ = 6782805119 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (6782936197) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3391468095 + 3391468096.

It is an arithmetic number, because the mean of its divisors is an integer number (3391468096).

Almost surely, 2^6782936191 is an apocalyptic number.

6782936191 is a deficient number, since it is larger than the sum of its proper divisors (1).

6782936191 is an equidigital number, since it uses as much as digits as its factorization.

6782936191 is an evil number, because the sum of its binary digits is even.

The product of its digits is 979776, while the sum is 52.

The square root of 6782936191 is about 82358.5829831961. The cubic root of 6782936191 is about 1892.9504406743.

The spelling of 6782936191 in words is "six billion, seven hundred eighty-two million, nine hundred thirty-six thousand, one hundred ninety-one".