4021312885 has 8 divisors (see below), whose sum is σ = 4840994520. Its totient is φ = 3206770944.

The previous prime is 4021312849. The next prime is 4021312891. The reversal of 4021312885 is 5882131204.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 7963684 + 4013349201 = 2822^2 + 63351^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-4021312885 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 4021312885.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1283200 + ... + 1286329.

It is an arithmetic number, because the mean of its divisors is an integer number (605124315).

Almost surely, 2^4021312885 is an apocalyptic number.

It is an amenable number.

4021312885 is a deficient number, since it is larger than the sum of its proper divisors (819681635).

4021312885 is a wasteful number, since it uses less digits than its factorization.

4021312885 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2569847.

The product of its (nonzero) digits is 15360, while the sum is 34.

The square root of 4021312885 is about 63413.8225073998. The cubic root of 4021312885 is about 1590.2154007191.

The spelling of 4021312885 in words is "four billion, twenty-one million, three hundred twelve thousand, eight hundred eighty-five".