6499296450 has 72 divisors (see below), whose sum is σ = 17594896176. Its totient is φ = 1719900000.

The previous prime is 6499296449. The next prime is 6499296487. The reversal of 6499296450 is 546929946.

It is a happy number.

It is a super-3 number, since 3×6499296450³ (a number of 30 digits) contains 333 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 3825 + ... + 114075.

It is an arithmetic number, because the mean of its divisors is an integer number (244373558).

Almost surely, 2^6499296450 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 6499296450, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (8797448088).

6499296450 is an abundant number, since it is smaller than the sum of its proper divisors (11095599726).

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

6499296450 is a wasteful number, since it uses less digits than its factorization.

6499296450 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 110400 (or 110392 counting only the distinct ones).

The product of its (nonzero) digits is 4199040, while the sum is 54.

The square root of 6499296450 is about 80618.2141330357. The cubic root of 6499296450 is about 1866.1882424349.

The spelling of 6499296450 in words is "six billion, four hundred ninety-nine million, two hundred ninety-six thousand, four hundred fifty".