6918816740 has 96 divisors (see below), whose sum is σ = 16904764800. Its totient is φ = 2350725120.

The previous prime is 6918816727. The next prime is 6918816797. The reversal of 6918816740 is 476188196.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 513206 + ... + 526514.

It is an arithmetic number, because the mean of its divisors is an integer number (176091300).

Almost surely, 2^6918816740 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 6918816740, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (8452382400).

6918816740 is an abundant number, since it is smaller than the sum of its proper divisors (9985948060).

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

6918816740 is a wasteful number, since it uses less digits than its factorization.

6918816740 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13485 (or 13483 counting only the distinct ones).

The product of its (nonzero) digits is 580608, while the sum is 50.

The square root of 6918816740 is about 83179.4249799793. The cubic root of 6918816740 is about 1905.5072661199.

The spelling of 6918816740 in words is "six billion, nine hundred eighteen million, eight hundred sixteen thousand, seven hundred forty".