6926640255 has 12 divisors (see below), whose sum is σ = 12006176520. Its totient is φ = 3694208112.

The previous prime is 6926640239. The next prime is 6926640271. The reversal of 6926640255 is 5520466296.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (6926640239) and next prime (6926640271).

It is not a de Polignac number, because 6926640255 - 2⁴ = 6926640239 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45), and also a Moran number because the ratio is a prime number: 153925339 = 6926640255 / (6 + 9 + 2 + 6 + 6 + 4 + 0 + 2 + 5 + 5).

It is a self number, because there is not a number n which added to its sum of digits gives 6926640255.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 76962625 + ... + 76962714.

It is an arithmetic number, because the mean of its divisors is an integer number (1000514710).

Almost surely, 2^6926640255 is an apocalyptic number.

6926640255 is a deficient number, since it is larger than the sum of its proper divisors (5079536265).

6926640255 is a wasteful number, since it uses less digits than its factorization.

6926640255 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 153925350 (or 153925347 counting only the distinct ones).

The product of its (nonzero) digits is 777600, while the sum is 45.

The square root of 6926640255 is about 83226.4396390955. The cubic root of 6926640255 is about 1906.2252188053.

The spelling of 6926640255 in words is "six billion, nine hundred twenty-six million, six hundred forty thousand, two hundred fifty-five".