3199899648 has 192 divisors, whose sum is σ = 9411292800. Its totient is φ = 958791680.

The previous prime is 3199899641. The next prime is 3199899707. The reversal of 3199899648 is 8469989913.

It is a tau number, because it is divible by the number of its divisors (192).

It is a Harshad number since it is a multiple of its sum of digits (66).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3199899641) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 7636783 + ... + 7637201.

It is an arithmetic number, because the mean of its divisors is an integer number (49017150).

Almost surely, 2^3199899648 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 3199899648, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4705646400).

3199899648 is an abundant number, since it is smaller than the sum of its proper divisors (6211393152).

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

3199899648 is a wasteful number, since it uses less digits than its factorization.

3199899648 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 568 (or 548 counting only the distinct ones).

The product of its digits is 30233088, while the sum is 66.

The square root of 3199899648 is about 56567.6554932233. The cubic root of 3199899648 is about 1473.5971951314.

The spelling of 3199899648 in words is "three billion, one hundred ninety-nine million, eight hundred ninety-nine thousand, six hundred forty-eight".