8001889669 has 4 divisors (see below), whose sum is σ = 8049805344. Its totient is φ = 7953973996.

The previous prime is 8001889667. The next prime is 8001889673. The reversal of 8001889669 is 9669881008.

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 a cyclic number.

It is not a de Polignac number, because 8001889669 - 2¹ = 8001889667 is a prime.

It is a super-2 number, since 2×8001889669² (a number of 21 digits) 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 (8001889667) 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, 23957587 + ... + 23957920.

It is an arithmetic number, because the mean of its divisors is an integer number (2012451336).

Almost surely, 2^8001889669 is an apocalyptic number.

It is an amenable number.

8001889669 is a deficient number, since it is larger than the sum of its proper divisors (47915675).

8001889669 is a wasteful number, since it uses less digits than its factorization.

8001889669 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 47915674.

The product of its (nonzero) digits is 1492992, while the sum is 55.

The square root of 8001889669 is about 89453.2820471110. The cubic root of 8001889669 is about 2000.1574600195.

The spelling of 8001889669 in words is "eight billion, one million, eight hundred eighty-nine thousand, six hundred sixty-nine".