6718135788 has 360 divisors, whose sum is σ = 22542816912. Its totient is φ = 1728324864.

The previous prime is 6718135771. The next prime is 6718135807. The reversal of 6718135788 is 8875318176.

It is a happy number.

6718135788 is a `hidden beast` number, since 67 + 1 + 8 + 1 + 3 + 578 + 8 = 666.

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 119 ways as a sum of consecutive naturals, for example, 8874306 + ... + 8875062.

Almost surely, 2^6718135788 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 6718135788, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (11271408456).

6718135788 is an abundant number, since it is smaller than the sum of its proper divisors (15824681124).

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

6718135788 is a wasteful number, since it uses less digits than its factorization.

6718135788 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 843 (or 825 counting only the distinct ones).

The product of its digits is 2257920, while the sum is 54.

The square root of 6718135788 is about 81964.2348100682. The cubic root of 6718135788 is about 1886.9030763505.

The spelling of 6718135788 in words is "six billion, seven hundred eighteen million, one hundred thirty-five thousand, seven hundred eighty-eight".