6518470140 has 672 divisors, whose sum is σ = 26838483840. Its totient is φ = 1294424064.

The previous prime is 6518470111. The next prime is 6518470193. The reversal of 6518470140 is 410748156.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a junction number, because it is equal to n+sod(n) for n = 6518470095 and 6518470104.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 223 ways as a sum of consecutive naturals, for example, 383439412 + ... + 383439428.

It is an arithmetic number, because the mean of its divisors is an integer number (39938220).

Almost surely, 2^6518470140 is an apocalyptic number.

6518470140 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 6518470140, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (13419241920).

6518470140 is an abundant number, since it is smaller than the sum of its proper divisors (20320013700).

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

6518470140 is a wasteful number, since it uses less digits than its factorization.

6518470140 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 98 (or 47 counting only the distinct ones).

The product of its (nonzero) digits is 26880, while the sum is 36.

The square root of 6518470140 is about 80737.0431710253. The cubic root of 6518470140 is about 1868.0215991126.

The spelling of 6518470140 in words is "six billion, five hundred eighteen million, four hundred seventy thousand, one hundred forty".