8889369641 has 2 divisors, whose sum is σ = 8889369642. Its totient is φ = 8889369640.

The previous prime is 8889369607. The next prime is 8889369677. The reversal of 8889369641 is 1469639888.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 8386713241 + 502656400 = 91579^2 + 22420^2 .

It is a cyclic number.

It is not a de Polignac number, because 8889369641 - 2¹⁰ = 8889368617 is a prime.

It is a super-2 number, since 2×8889369641² (a number of 21 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (8889366641) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4444684820 + 4444684821.

It is an arithmetic number, because the mean of its divisors is an integer number (4444684821).

Almost surely, 2^8889369641 is an apocalyptic number.

It is an amenable number.

8889369641 is a deficient number, since it is larger than the sum of its proper divisors (1).

8889369641 is an equidigital number, since it uses as much as digits as its factorization.

8889369641 is an evil number, because the sum of its binary digits is even.

The product of its digits is 17915904, while the sum is 62.

The square root of 8889369641 is about 94283.4536968179. The cubic root of 8889369641 is about 2071.5256818440.

The spelling of 8889369641 in words is "eight billion, eight hundred eighty-nine million, three hundred sixty-nine thousand, six hundred forty-one".