6784148661 has 4 divisors (see below), whose sum is σ = 9045531552. Its totient is φ = 4522765772.

The previous prime is 6784148659. The next prime is 6784148671. The reversal of 6784148661 is 1668414876.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 6784148661 - 2¹ = 6784148659 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6784148671) 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, 1130691441 + ... + 1130691446.

It is an arithmetic number, because the mean of its divisors is an integer number (2261382888).

Almost surely, 2^6784148661 is an apocalyptic number.

It is an amenable number.

6784148661 is a deficient number, since it is larger than the sum of its proper divisors (2261382891).

6784148661 is a wasteful number, since it uses less digits than its factorization.

6784148661 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2261382890.

The product of its digits is 1548288, while the sum is 51.

The square root of 6784148661 is about 82365.9435749995. The cubic root of 6784148661 is about 1893.0632241265.

The spelling of 6784148661 in words is "six billion, seven hundred eighty-four million, one hundred forty-eight thousand, six hundred sixty-one".