6781477266 has 24 divisors (see below), whose sum is σ = 14727308544. Its totient is φ = 2255245080.

The previous prime is 6781477243. The next prime is 6781477271. The reversal of 6781477266 is 6627741876.

It is an unprimeable number.

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 11 ways as a sum of consecutive naturals, for example, 429306 + ... + 444821.

It is an arithmetic number, because the mean of its divisors is an integer number (613637856).

Almost surely, 2^6781477266 is an apocalyptic number.

6781477266 is an abundant number, since it is smaller than the sum of its proper divisors (7945831278).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

6781477266 is a wasteful number, since it uses less digits than its factorization.

6781477266 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 874566 (or 874563 counting only the distinct ones).

The product of its digits is 4741632, while the sum is 54.

The square root of 6781477266 is about 82349.7253547333. The cubic root of 6781477266 is about 1892.8147142638.

The spelling of 6781477266 in words is "six billion, seven hundred eighty-one million, four hundred seventy-seven thousand, two hundred sixty-six".