6494117388 has 96 divisors (see below), whose sum is σ = 17431895040. Its totient is φ = 1860978240.

The previous prime is 6494117353. The next prime is 6494117467. The reversal of 6494117388 is 8837114946.

It is a self number, because there is not a number n which added to its sum of digits gives 6494117388.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1610631 + ... + 1614657.

It is an arithmetic number, because the mean of its divisors is an integer number (181582240).

Almost surely, 2^6494117388 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 6494117388, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (8715947520).

6494117388 is an abundant number, since it is smaller than the sum of its proper divisors (10937777652).

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

6494117388 is a wasteful number, since it uses less digits than its factorization.

6494117388 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4707 (or 4705 counting only the distinct ones).

The product of its digits is 1161216, while the sum is 51.

The square root of 6494117388 is about 80586.0868140401. The cubic root of 6494117388 is about 1865.6924106638.

The spelling of 6494117388 in words is "six billion, four hundred ninety-four million, one hundred seventeen thousand, three hundred eighty-eight".