8881475989 has 2 divisors, whose sum is σ = 8881475990. Its totient is φ = 8881475988.

The previous prime is 8881475959. The next prime is 8881476017. The reversal of 8881475989 is 9895741888.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 7641731889 + 1239744100 = 87417^2 + 35210^2 .

It is a cyclic number.

It is not a de Polignac number, because 8881475989 - 2⁷ = 8881475861 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (8881475909) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4440737994 + 4440737995.

It is an arithmetic number, because the mean of its divisors is an integer number (4440737995).

Almost surely, 2^8881475989 is an apocalyptic number.

It is an amenable number.

8881475989 is a deficient number, since it is larger than the sum of its proper divisors (1).

8881475989 is an equidigital number, since it uses as much as digits as its factorization.

8881475989 is an evil number, because the sum of its binary digits is even.

The product of its digits is 46448640, while the sum is 67.

The square root of 8881475989 is about 94241.5831201917. The cubic root of 8881475989 is about 2070.9123370667.

The spelling of 8881475989 in words is "eight billion, eight hundred eighty-one million, four hundred seventy-five thousand, nine hundred eighty-nine".