6459986700 has 324 divisors, whose sum is σ = 21796964280. Its totient is φ = 1599575040.

The previous prime is 6459986683. The next prime is 6459986713. The reversal of 6459986700 is 76899546.

It is an unprimeable number.

It is a polite number, since it can be written in 107 ways as a sum of consecutive naturals, for example, 19168932 + ... + 19169268.

Almost surely, 2^6459986700 is an apocalyptic number.

6459986700 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 6459986700, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (10898482140).

6459986700 is an abundant number, since it is smaller than the sum of its proper divisors (15336977580).

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

6459986700 is a wasteful number, since it uses less digits than its factorization.

6459986700 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 454 (or 425 counting only the distinct ones).

The product of its (nonzero) digits is 3265920, while the sum is 54.

The square root of 6459986700 is about 80374.0424515278. The cubic root of 6459986700 is about 1862.4182039960.

The spelling of 6459986700 in words is "six billion, four hundred fifty-nine million, nine hundred eighty-six thousand, seven hundred".