6786642834 has 40 divisors (see below), whose sum is σ = 15578027388. Its totient is φ = 2207036160.

The previous prime is 6786642799. The next prime is 6786642847. The reversal of 6786642834 is 4382466876.

It can be written as a sum of positive squares in 2 ways, for example, as 4525925625 + 2260717209 = 67275^2 + 47547^2 .

It is a Harshad number since it is a multiple of its sum of digits (54).

It is an unprimeable number.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 504247 + ... + 517530.

Almost surely, 2^6786642834 is an apocalyptic number.

6786642834 is an abundant number, since it is smaller than the sum of its proper divisors (8791384554).

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

6786642834 is a wasteful number, since it uses less digits than its factorization.

6786642834 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1021832 (or 1021823 counting only the distinct ones).

The product of its digits is 9289728, while the sum is 54.

The square root of 6786642834 is about 82381.0829863264. The cubic root of 6786642834 is about 1893.2951888089.

The spelling of 6786642834 in words is "six billion, seven hundred eighty-six million, six hundred forty-two thousand, eight hundred thirty-four".