4028808711690 has 128 divisors (see below), whose sum is σ = 12290305789440. Its totient is φ = 919968192000.

The previous prime is 4028808711667. The next prime is 4028808711709. The reversal of 4028808711690 is 961178088204.

4028808711690 is a `hidden beast` number, since 402 + 8 + 8 + 0 + 8 + 71 + 169 + 0 = 666.

It is a super-2 number, since 2×4028808711690² (a number of 26 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 885790 + ... + 2973590.

It is an arithmetic number, because the mean of its divisors is an integer number (96018013980).

Almost surely, 2^{4028808711690} is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 4028808711690, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (6145152894720).

4028808711690 is an abundant number, since it is smaller than the sum of its proper divisors (8261497077750).

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

4028808711690 is a wasteful number, since it uses less digits than its factorization.

4028808711690 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2088845 (or 2088839 counting only the distinct ones).

The product of its (nonzero) digits is 1548288, while the sum is 54.

The spelling of 4028808711690 in words is "four trillion, twenty-eight billion, eight hundred eight million, seven hundred eleven thousand, six hundred ninety".