6499860480 has 456 divisors, whose sum is σ = 24536631600. Its totient is φ = 1585446912.

The previous prime is 6499860473. The next prime is 6499860511. The reversal of 6499860480 is 840689946.

It is a tau number, because it is divible by the number of its divisors (456).

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 224133106 + ... + 224133134.

Almost surely, 2^6499860480 is an apocalyptic number.

6499860480 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 6499860480, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (12268315800).

6499860480 is an abundant number, since it is smaller than the sum of its proper divisors (18036771120).

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

6499860480 is an equidigital number, since it uses as much as digits as its factorization.

6499860480 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 95 (or 58 counting only the distinct ones).

The product of its (nonzero) digits is 2985984, while the sum is 54.

The square root of 6499860480 is about 80621.7122120338. The cubic root of 6499860480 is about 1866.2422254937.

The spelling of 6499860480 in words is "six billion, four hundred ninety-nine million, eight hundred sixty thousand, four hundred eighty".