6793780993 has 2 divisors, whose sum is σ = 6793780994. Its totient is φ = 6793780992.

The previous prime is 6793780949. The next prime is 6793781081. The reversal of 6793780993 is 3990873976.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 6379536384 + 414244609 = 79872^2 + 20353^2 .

It is a cyclic number.

It is not a de Polignac number, because 6793780993 - 2¹³ = 6793772801 is a prime.

It is not a weakly prime, because it can be changed into another prime (6793783993) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3396890496 + 3396890497.

It is an arithmetic number, because the mean of its divisors is an integer number (3396890497).

Almost surely, 2^6793780993 is an apocalyptic number.

It is an amenable number.

6793780993 is a deficient number, since it is larger than the sum of its proper divisors (1).

6793780993 is an equidigital number, since it uses as much as digits as its factorization.

6793780993 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 15431472, while the sum is 61.

The square root of 6793780993 is about 82424.3956180450. The cubic root of 6793780993 is about 1893.9587425461.

The spelling of 6793780993 in words is "six billion, seven hundred ninety-three million, seven hundred eighty thousand, nine hundred ninety-three".