6399042048 has 240 divisors, whose sum is σ = 21211160256. Its totient is φ = 1819238400.

The previous prime is 6399042047. The next prime is 6399042073. The reversal of 6399042048 is 8402409936.

6399042048 is a `hidden beast` number, since 639 + 9 + 0 + 4 + 2 + 0 + 4 + 8 = 666.

It is a junction number, because it is equal to n+sod(n) for n = 6399041994 and 6399042012.

It is not an unprimeable number, because it can be changed into a prime (6399042047) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 9128098 + ... + 9128798.

Almost surely, 2^6399042048 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 6399042048, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (10605580128).

6399042048 is an abundant number, since it is smaller than the sum of its proper divisors (14812118208).

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

6399042048 is a wasteful number, since it uses less digits than its factorization.

6399042048 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1015 (or 996 counting only the distinct ones).

The product of its (nonzero) digits is 373248, while the sum is 45.

The square root of 6399042048 is about 79994.0125759422. The cubic root of 6399042048 is about 1856.5428950874.

The spelling of 6399042048 in words is "six billion, three hundred ninety-nine million, forty-two thousand, forty-eight".