2889448931 has 2 divisors, whose sum is σ = 2889448932. Its totient is φ = 2889448930.

The previous prime is 2889448819. The next prime is 2889448987. The reversal of 2889448931 is 1398449882.

It is an a-pointer prime, because the next prime (2889448987) can be obtained adding 2889448931 to its sum of digits (56).

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 2889448931 - 2¹⁸ = 2889186787 is a prime.

It is a super-2 number, since 2×2889448931² = 16697830249714085522, which contains 22 as substring.

It is a Sophie Germain prime.

It is not a weakly prime, because it can be changed into another prime (2889448631) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1444724465 + 1444724466.

It is an arithmetic number, because the mean of its divisors is an integer number (1444724466).

Almost surely, 2^2889448931 is an apocalyptic number.

2889448931 is a deficient number, since it is larger than the sum of its proper divisors (1).

2889448931 is an equidigital number, since it uses as much as digits as its factorization.

2889448931 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 3981312, while the sum is 56.

The square root of 2889448931 is about 53753.5945867809. The cubic root of 2889448931 is about 1424.3115880343.

The spelling of 2889448931 in words is "two billion, eight hundred eighty-nine million, four hundred forty-eight thousand, nine hundred thirty-one".