8245665429 has 32 divisors (see below), whose sum is σ = 11805696000. Its totient is φ = 5103259200.

The previous prime is 8245665409. The next prime is 8245665437. The reversal of 8245665429 is 9245665428.

It is not a de Polignac number, because 8245665429 - 2¹⁶ = 8245599893 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8245665409) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 4225404 + ... + 4227354.

It is an arithmetic number, because the mean of its divisors is an integer number (368928000).

Almost surely, 2^8245665429 is an apocalyptic number.

It is an amenable number.

8245665429 is a deficient number, since it is larger than the sum of its proper divisors (3560030571).

8245665429 is a wasteful number, since it uses less digits than its factorization.

8245665429 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3425.

The product of its digits is 4147200, while the sum is 51.

The square root of 8245665429 is about 90805.6464598981. The cubic root of 8245665429 is about 2020.2660686843.

Subtracting 8245665429 from its reverse (9245665428), we obtain a palindrome (999999999).

The spelling of 8245665429 in words is "eight billion, two hundred forty-five million, six hundred sixty-five thousand, four hundred twenty-nine".