6779261225 has 24 divisors (see below), whose sum is σ = 9174269952. Its totient is φ = 4928340800.

The previous prime is 6779261221. The next prime is 6779261233. The reversal of 6779261225 is 5221629776.

It is not a de Polignac number, because 6779261225 - 2² = 6779261221 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 6779261225.

It is not an unprimeable number, because it can be changed into a prime (6779261221) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1100504 + ... + 1106646.

It is an arithmetic number, because the mean of its divisors is an integer number (382261248).

Almost surely, 2^6779261225 is an apocalyptic number.

It is an amenable number.

6779261225 is a deficient number, since it is larger than the sum of its proper divisors (2395008727).

6779261225 is a wasteful number, since it uses less digits than its factorization.

6779261225 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10177 (or 10172 counting only the distinct ones).

The product of its digits is 635040, while the sum is 47.

The square root of 6779261225 is about 82336.2691952945. The cubic root of 6779261225 is about 1892.6085147477.

The spelling of 6779261225 in words is "six billion, seven hundred seventy-nine million, two hundred sixty-one thousand, two hundred twenty-five".