6783506913 has 16 divisors (see below), whose sum is σ = 9158501376. Its totient is φ = 4465772160.

The previous prime is 6783506911. The next prime is 6783506971. The reversal of 6783506913 is 3196053876.

It is a happy number.

It is not a de Polignac number, because 6783506913 - 2¹ = 6783506911 is a prime.

It is not an unprimeable number, because it can be changed into a prime (6783506911) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 35295 + ... + 121707.

It is an arithmetic number, because the mean of its divisors is an integer number (572406336).

Almost surely, 2^6783506913 is an apocalyptic number.

It is an amenable number.

6783506913 is a deficient number, since it is larger than the sum of its proper divisors (2374994463).

6783506913 is a wasteful number, since it uses less digits than its factorization.

6783506913 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 86744.

The product of its (nonzero) digits is 816480, while the sum is 48.

The square root of 6783506913 is about 82362.0477708028. The cubic root of 6783506913 is about 1893.0035306701.

The spelling of 6783506913 in words is "six billion, seven hundred eighty-three million, five hundred six thousand, nine hundred thirteen".