6712840905 has 64 divisors (see below), whose sum is σ = 11338776576. Its totient is φ = 3386880000.

The previous prime is 6712840891. The next prime is 6712840909. The reversal of 6712840905 is 5090482176.

It is not a de Polignac number, because 6712840905 - 2⁷ = 6712840777 is a prime.

It is not an unprimeable number, because it can be changed into a prime (6712840909) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 4192105 + ... + 4193705.

It is an arithmetic number, because the mean of its divisors is an integer number (177168384).

Almost surely, 2^6712840905 is an apocalyptic number.

It is an amenable number.

6712840905 is a deficient number, since it is larger than the sum of its proper divisors (4625935671).

6712840905 is a wasteful number, since it uses less digits than its factorization.

6712840905 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1838.

The product of its (nonzero) digits is 120960, while the sum is 42.

The square root of 6712840905 is about 81931.9284833452. The cubic root of 6712840905 is about 1886.4072266454.

The spelling of 6712840905 in words is "six billion, seven hundred twelve million, eight hundred forty thousand, nine hundred five".