6771821949105 has 16 divisors (see below), whose sum is σ = 10834960959744. Its totient is φ = 3611623092480.

The previous prime is 6771821949059. The next prime is 6771821949107. The reversal of 6771821949105 is 5019491281776.

It is not a de Polignac number, because 6771821949105 - 2⁸ = 6771821948849 is a prime.

It is not an unprimeable number, because it can be changed into a prime (6771821949107) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3328200 + ... + 4961910.

It is an arithmetic number, because the mean of its divisors is an integer number (677185059984).

Almost surely, 2^{6771821949105} is an apocalyptic number.

It is an amenable number.

6771821949105 is a deficient number, since it is larger than the sum of its proper divisors (4063139010639).

6771821949105 is a wasteful number, since it uses less digits than its factorization.

6771821949105 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1910056.

The product of its (nonzero) digits is 7620480, while the sum is 60.

The spelling of 6771821949105 in words is "six trillion, seven hundred seventy-one billion, eight hundred twenty-one million, nine hundred forty-nine thousand, one hundred five".