6390681743511 has 24 divisors (see below), whose sum is σ = 10209737807360. Its totient is φ = 3826437299136.

The previous prime is 6390681743461. The next prime is 6390681743531. The reversal of 6390681743511 is 1153471860936.

6390681743511 is a `hidden beast` number, since 6 + 3 + 9 + 0 + 6 + 81 + 7 + 43 + 511 = 666.

It is a de Polignac number, because none of the positive numbers 2^k-6390681743511 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6390681743531) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 738120151 + ... + 738128808.

Almost surely, 2^{6390681743511} is an apocalyptic number.

6390681743511 is a deficient number, since it is larger than the sum of its proper divisors (3819056063849).

6390681743511 is a wasteful number, since it uses less digits than its factorization.

6390681743511 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1476249015 (or 1476249012 counting only the distinct ones).

The product of its (nonzero) digits is 3265920, while the sum is 54.

The spelling of 6390681743511 in words is "six trillion, three hundred ninety billion, six hundred eighty-one million, seven hundred forty-three thousand, five hundred eleven".