8025438889 has 8 divisors (see below), whose sum is σ = 8643640320. Its totient is φ = 7407360336.

The previous prime is 8025438853. The next prime is 8025438907. The reversal of 8025438889 is 9888345208.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 8025438889 - 2¹¹ = 8025436841 is a prime.

It is a super-2 number, since 2×8025438889² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (8025438809) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 140184 + ... + 188950.

It is an arithmetic number, because the mean of its divisors is an integer number (1080455040).

Almost surely, 2^8025438889 is an apocalyptic number.

It is an amenable number.

8025438889 is a deficient number, since it is larger than the sum of its proper divisors (618201431).

8025438889 is a wasteful number, since it uses less digits than its factorization.

8025438889 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 61439.

The product of its (nonzero) digits is 4423680, while the sum is 55.

The square root of 8025438889 is about 89584.8139418730. The cubic root of 8025438889 is about 2002.1176643741.

The spelling of 8025438889 in words is "eight billion, twenty-five million, four hundred thirty-eight thousand, eight hundred eighty-nine".