2431664869 has 2 divisors, whose sum is σ = 2431664870. Its totient is φ = 2431664868.

The previous prime is 2431664813. The next prime is 2431664929. The reversal of 2431664869 is 9684661342.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1452600769 + 979064100 = 38113^2 + 31290^2 .

It is a cyclic number.

It is not a de Polignac number, because 2431664869 - 2¹³ = 2431656677 is a prime.

It is a super-2 number, since 2×2431664869² = 11825988070257574322, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2431664269) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1215832434 + 1215832435.

It is an arithmetic number, because the mean of its divisors is an integer number (1215832435).

Almost surely, 2^2431664869 is an apocalyptic number.

It is an amenable number.

2431664869 is a deficient number, since it is larger than the sum of its proper divisors (1).

2431664869 is an equidigital number, since it uses as much as digits as its factorization.

2431664869 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1492992, while the sum is 49.

The square root of 2431664869 is about 49311.9140674949. The cubic root of 2431664869 is about 1344.7283889292.

The spelling of 2431664869 in words is "two billion, four hundred thirty-one million, six hundred sixty-four thousand, eight hundred sixty-nine".