6914471805 has 12 divisors (see below), whose sum is σ = 11985084540. Its totient is φ = 3687718272.

The previous prime is 6914471801. The next prime is 6914471857. The reversal of 6914471805 is 5081744196.

It can be written as a sum of positive squares in 2 ways, for example, as 2599164324 + 4315307481 = 50982^2 + 65691^2 .

It is not a de Polignac number, because 6914471805 - 2² = 6914471801 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: 153654929 = 6914471805 / (6 + 9 + 1 + 4 + 4 + 7 + 1 + 8 + 0 + 5).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6914471801) by changing a digit.

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, 76827420 + ... + 76827509.

It is an arithmetic number, because the mean of its divisors is an integer number (998757045).

Almost surely, 2^6914471805 is an apocalyptic number.

It is an amenable number.

6914471805 is a deficient number, since it is larger than the sum of its proper divisors (5070612735).

6914471805 is a wasteful number, since it uses less digits than its factorization.

6914471805 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 153654940 (or 153654937 counting only the distinct ones).

The product of its (nonzero) digits is 241920, while the sum is 45.

The square root of 6914471805 is about 83153.3030312086. The cubic root of 6914471805 is about 1905.1083039258.

The spelling of 6914471805 in words is "six billion, nine hundred fourteen million, four hundred seventy-one thousand, eight hundred five".