6718268736 has 112 divisors (see below), whose sum is σ = 20170932480. Its totient is φ = 2191749120.

The previous prime is 6718268719. The next prime is 6718268749. The reversal of 6718268736 is 6378628176.

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

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 39856 + ... + 122576.

Almost surely, 2^6718268736 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 6718268736, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (10085466240).

6718268736 is an abundant number, since it is smaller than the sum of its proper divisors (13452663744).

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

6718268736 is a wasteful number, since it uses less digits than its factorization.

6718268736 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 82789 (or 82773 counting only the distinct ones).

The product of its digits is 4064256, while the sum is 54.

The square root of 6718268736 is about 81965.0458183243. The cubic root of 6718268736 is about 1886.9155231732.

The spelling of 6718268736 in words is "six billion, seven hundred eighteen million, two hundred sixty-eight thousand, seven hundred thirty-six".