6775342640 has 160 divisors (see below), whose sum is σ = 17818859520. Its totient is φ = 2373580800.

The previous prime is 6775342633. The next prime is 6775342643. The reversal of 6775342640 is 462435776.

It is a Harshad number since it is a multiple of its sum of digits (44).

It is a junction number, because it is equal to n+sod(n) for n = 6775342591 and 6775342600.

It is not an unprimeable number, because it can be changed into a prime (6775342643) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 8374556 + ... + 8375364.

It is an arithmetic number, because the mean of its divisors is an integer number (111367872).

Almost surely, 2^6775342640 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 6775342640, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (8909429760).

6775342640 is an abundant number, since it is smaller than the sum of its proper divisors (11043516880).

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

6775342640 is a wasteful number, since it uses less digits than its factorization.

6775342640 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1171 (or 1165 counting only the distinct ones).

The product of its (nonzero) digits is 846720, while the sum is 44.

The square root of 6775342640 is about 82312.4695292275. The cubic root of 6775342640 is about 1892.2437858834.

The spelling of 6775342640 in words is "six billion, seven hundred seventy-five million, three hundred forty-two thousand, six hundred forty".