6820637707 has 6 divisors (see below), whose sum is σ = 7385661132. Its totient is φ = 6295973112.

The previous prime is 6820637699. The next prime is 6820637717. The reversal of 6820637707 is 7077360286.

It is not a de Polignac number, because 6820637707 - 2³ = 6820637699 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (6820637717) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 20179233 + ... + 20179570.

It is an arithmetic number, because the mean of its divisors is an integer number (1230943522).

Almost surely, 2^6820637707 is an apocalyptic number.

6820637707 is a deficient number, since it is larger than the sum of its proper divisors (565023425).

6820637707 is a wasteful number, since it uses less digits than its factorization.

6820637707 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 40358829 (or 40358816 counting only the distinct ones).

The product of its (nonzero) digits is 592704, while the sum is 46.

The square root of 6820637707 is about 82587.1521908826. The cubic root of 6820637707 is about 1896.4511508785.

The spelling of 6820637707 in words is "six billion, eight hundred twenty million, six hundred thirty-seven thousand, seven hundred seven".