6386748791 has 2 divisors, whose sum is σ = 6386748792. Its totient is φ = 6386748790.

The previous prime is 6386748773. The next prime is 6386748833. The reversal of 6386748791 is 1978476836.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 6386748791 - 2²⁶ = 6319639927 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 6386748791.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (6386748091) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3193374395 + 3193374396.

It is an arithmetic number, because the mean of its divisors is an integer number (3193374396).

Almost surely, 2^6386748791 is an apocalyptic number.

6386748791 is a deficient number, since it is larger than the sum of its proper divisors (1).

6386748791 is an equidigital number, since it uses as much as digits as its factorization.

6386748791 is an evil number, because the sum of its binary digits is even.

The product of its digits is 12192768, while the sum is 59.

The square root of 6386748791 is about 79917.1370295508. The cubic root of 6386748791 is about 1855.3532592263.

The spelling of 6386748791 in words is "six billion, three hundred eighty-six million, seven hundred forty-eight thousand, seven hundred ninety-one".