4146944869 has 4 divisors (see below), whose sum is σ = 4147245760. Its totient is φ = 4146643980.

The previous prime is 4146944863. The next prime is 4146944909. The reversal of 4146944869 is 9684496414.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 9684496414 = 2 ⋅4842248207.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-4146944869 is a prime.

It is a super-2 number, since 2×4146944869² = 34394303493050854322, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4146944863) 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, 128727 + ... + 157684.

It is an arithmetic number, because the mean of its divisors is an integer number (1036811440).

Almost surely, 2^4146944869 is an apocalyptic number.

It is an amenable number.

4146944869 is a deficient number, since it is larger than the sum of its proper divisors (300891).

4146944869 is a wasteful number, since it uses less digits than its factorization.

4146944869 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 300890.

The product of its digits is 5971968, while the sum is 55.

The square root of 4146944869 is about 64396.7768525724. The cubic root of 4146944869 is about 1606.6061333221.

The spelling of 4146944869 in words is "four billion, one hundred forty-six million, nine hundred forty-four thousand, eight hundred sixty-nine".