6627787669441 has 4 divisors (see below), whose sum is σ = 6627793231300. Its totient is φ = 6627782107584.

The previous prime is 6627787669367. The next prime is 6627787669537. The reversal of 6627787669441 is 1449667877266.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It can be written as a sum of positive squares in 2 ways, for example, as 4845039311025 + 1782748358416 = 2201145^2 + 1335196^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-6627787669441 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (6627787469441) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 186876 + ... + 3645613.

It is an arithmetic number, because the mean of its divisors is an integer number (1656948307825).

Almost surely, 2^{6627787669441} is an apocalyptic number.

It is an amenable number.

6627787669441 is a deficient number, since it is larger than the sum of its proper divisors (5561859).

6627787669441 is a wasteful number, since it uses less digits than its factorization.

6627787669441 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5561858.

The product of its digits is 1024192512, while the sum is 73.

The spelling of 6627787669441 in words is "six trillion, six hundred twenty-seven billion, seven hundred eighty-seven million, six hundred sixty-nine thousand, four hundred forty-one".