4128521802 has 16 divisors (see below), whose sum is σ = 8257725792. Its totient is φ = 1376060240.

The previous prime is 4128521801. The next prime is 4128521807. The reversal of 4128521802 is 2081258214.

4128521802 is digitally balanced in base 2 and base 4, because in such bases it contains all the possibile digits an equal number of times.

It is not an unprimeable number, because it can be changed into a prime (4128521801) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 85177 + ... + 124547.

It is an arithmetic number, because the mean of its divisors is an integer number (516107862).

Almost surely, 2^4128521802 is an apocalyptic number.

4128521802 is an abundant number, since it is smaller than the sum of its proper divisors (4129203990).

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

4128521802 is a wasteful number, since it uses less digits than its factorization.

4128521802 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 56853.

The product of its (nonzero) digits is 10240, while the sum is 33.

The square root of 4128521802 is about 64253.5742352128. The cubic root of 4128521802 is about 1604.2234513627.

The spelling of 4128521802 in words is "four billion, one hundred twenty-eight million, five hundred twenty-one thousand, eight hundred two".