6493842740 has 96 divisors (see below), whose sum is σ = 17136451584. Its totient is φ = 2008056960.

The previous prime is 6493842709. The next prime is 6493842791. The reversal of 6493842740 is 472483946.

It is a happy number.

It is a congruent number.

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, 178979 + ... + 212181.

It is an arithmetic number, because the mean of its divisors is an integer number (178504704).

Almost surely, 2^6493842740 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 6493842740, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (8568225792).

6493842740 is an abundant number, since it is smaller than the sum of its proper divisors (10642608844).

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

6493842740 is a wasteful number, since it uses less digits than its factorization.

6493842740 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33357 (or 33355 counting only the distinct ones).

The product of its (nonzero) digits is 1161216, while the sum is 47.

The square root of 6493842740 is about 80584.3827301544. The cubic root of 6493842740 is about 1865.6661091213. Note that the first 3 decimals are identical.

The spelling of 6493842740 in words is "six billion, four hundred ninety-three million, eight hundred forty-two thousand, seven hundred forty".