4109506446461 has 4 divisors (see below), whose sum is σ = 4425622326972. Its totient is φ = 3793390565952.

The previous prime is 4109506446443. The next prime is 4109506446499. The reversal of 4109506446461 is 1646446059014.

It is a happy number.

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 1841500566361 + 2268005880100 = 1357019^2 + 1505990^2 .

It is a de Polignac number, because none of the positive numbers 2^k-4109506446461 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4109506446431) 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, 158057940236 + ... + 158057940261.

It is an arithmetic number, because the mean of its divisors is an integer number (1106405581743).

Almost surely, 2^{4109506446461} is an apocalyptic number.

It is an amenable number.

4109506446461 is a deficient number, since it is larger than the sum of its proper divisors (316115880511).

4109506446461 is a wasteful number, since it uses less digits than its factorization.

4109506446461 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 316115880510.

The product of its (nonzero) digits is 2488320, while the sum is 50.

The spelling of 4109506446461 in words is "four trillion, one hundred nine billion, five hundred six million, four hundred forty-six thousand, four hundred sixty-one".