4009805712 has 60 divisors (see below), whose sum is σ = 12242063184. Its totient is φ = 1215092160.

The previous prime is 4009805711. The next prime is 4009805713. The reversal of 4009805712 is 2175089004.

4009805712 is a `hidden beast` number, since 4 + 0 + 0 + 9 + 80 + 571 + 2 = 666.

It is an interprime number because it is at equal distance from previous prime (4009805711) and next prime (4009805713).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is not an unprimeable number, because it can be changed into a prime (4009805711) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1264138 + ... + 1267305.

Almost surely, 2^4009805712 is an apocalyptic number.

It is an amenable number.

4009805712 is an abundant number, since it is smaller than the sum of its proper divisors (8232257472).

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

4009805712 is a wasteful number, since it uses less digits than its factorization.

4009805712 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2531468 (or 2531459 counting only the distinct ones).

The product of its (nonzero) digits is 20160, while the sum is 36.

The square root of 4009805712 is about 63323.0267122474. The cubic root of 4009805712 is about 1588.6971265952.

The spelling of 4009805712 in words is "four billion, nine million, eight hundred five thousand, seven hundred twelve".