4129072768 has 32 divisors (see below), whose sum is σ = 8290690560. Its totient is φ = 2048272128.

The previous prime is 4129072763. The next prime is 4129072777. The reversal of 4129072768 is 8672709214.

It is a tau number, because it is divible by the number of its divisors (32).

It is not an unprimeable number, because it can be changed into a prime (4129072763) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 110746 + ... + 143257.

It is an arithmetic number, because the mean of its divisors is an integer number (259084080).

Almost surely, 2^4129072768 is an apocalyptic number.

It is an amenable number.

4129072768 is an abundant number, since it is smaller than the sum of its proper divisors (4161617792).

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

4129072768 is a wasteful number, since it uses less digits than its factorization.

4129072768 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 254144 (or 254132 counting only the distinct ones).

The product of its (nonzero) digits is 338688, while the sum is 46.

The square root of 4129072768 is about 64257.8615268202. The cubic root of 4129072768 is about 1604.2948113074.

The spelling of 4129072768 in words is "four billion, one hundred twenty-nine million, seventy-two thousand, seven hundred sixty-eight".