4061078909 has 4 divisors (see below), whose sum is σ = 4074053916. Its totient is φ = 4048103904.

The previous prime is 4061078773. The next prime is 4061078929. The reversal of 4061078909 is 9098701604.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 2173610884 + 1887468025 = 46622^2 + 43445^2 .

It is a cyclic number.

It is not a de Polignac number, because 4061078909 - 2⁸ = 4061078653 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 4061078909.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4061078929) 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, 6487034 + ... + 6487659.

It is an arithmetic number, because the mean of its divisors is an integer number (1018513479).

Almost surely, 2^4061078909 is an apocalyptic number.

It is an amenable number.

4061078909 is a deficient number, since it is larger than the sum of its proper divisors (12975007).

4061078909 is a wasteful number, since it uses less digits than its factorization.

4061078909 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12975006.

The product of its (nonzero) digits is 108864, while the sum is 44.

The square root of 4061078909 is about 63726.5949898471. The cubic root of 4061078909 is about 1595.4399992848.

The spelling of 4061078909 in words is "four billion, sixty-one million, seventy-eight thousand, nine hundred nine".