6783405311071 has 4 divisors (see below), whose sum is σ = 6783429086752. Its totient is φ = 6783381535392.

The previous prime is 6783405311047. The next prime is 6783405311083. The reversal of 6783405311071 is 1701135043876.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-6783405311071 is a prime.

It is a super-2 number, since 2×6783405311071² (a number of 26 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6783405318071) 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 3 ways as a sum of consecutive naturals, for example, 11454615 + ... + 12032248.

It is an arithmetic number, because the mean of its divisors is an integer number (1695857271688).

Almost surely, 2^{6783405311071} is an apocalyptic number.

6783405311071 is a deficient number, since it is larger than the sum of its proper divisors (23775681).

6783405311071 is a wasteful number, since it uses less digits than its factorization.

6783405311071 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23775680.

The product of its (nonzero) digits is 423360, while the sum is 46.

The spelling of 6783405311071 in words is "six trillion, seven hundred eighty-three billion, four hundred five million, three hundred eleven thousand, seventy-one".