8642025049 has 4 divisors (see below), whose sum is σ = 9876600064. Its totient is φ = 7407450036.

The previous prime is 8642025043. The next prime is 8642025071. The reversal of 8642025049 is 9405202468.

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.

It is not a de Polignac number, because 8642025049 - 2⁵ = 8642025017 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (8642025043) 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, 617287497 + ... + 617287510.

It is an arithmetic number, because the mean of its divisors is an integer number (2469150016).

Almost surely, 2^8642025049 is an apocalyptic number.

It is an amenable number.

8642025049 is a deficient number, since it is larger than the sum of its proper divisors (1234575015).

8642025049 is a wasteful number, since it uses less digits than its factorization.

8642025049 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1234575014.

The product of its (nonzero) digits is 138240, while the sum is 40.

The square root of 8642025049 is about 92962.4927000132. The cubic root of 8642025049 is about 2052.1314376129.

The spelling of 8642025049 in words is "eight billion, six hundred forty-two million, twenty-five thousand, forty-nine".