6485991180 has 96 divisors (see below), whose sum is σ = 18394096896. Its totient is φ = 1707492096.

The previous prime is 6485991167. The next prime is 6485991199. The reversal of 6485991180 is 811995846.

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, 2033547 + ... + 2036733.

It is an arithmetic number, because the mean of its divisors is an integer number (191605176).

Almost surely, 2^6485991180 is an apocalyptic number.

6485991180 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 6485991180, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (9197048448).

6485991180 is an abundant number, since it is smaller than the sum of its proper divisors (11908105716).

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

6485991180 is a wasteful number, since it uses less digits than its factorization.

6485991180 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3623 (or 3621 counting only the distinct ones).

The product of its (nonzero) digits is 622080, while the sum is 51.

The square root of 6485991180 is about 80535.6516084647. The cubic root of 6485991180 is about 1864.9138941575.

The spelling of 6485991180 in words is "six billion, four hundred eighty-five million, nine hundred ninety-one thousand, one hundred eighty".