887144249009 has 2 divisors, whose sum is σ = 887144249010. Its totient is φ = 887144249008.

The previous prime is 887144248973. The next prime is 887144249083. The reversal of 887144249009 is 900942441788.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 512634520225 + 374509728784 = 715985^2 + 611972^2 .

It is a cyclic number.

It is not a de Polignac number, because 887144249009 - 2¹² = 887144244913 is a prime.

It is not a weakly prime, because it can be changed into another prime (887144249099) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 443572124504 + 443572124505.

It is an arithmetic number, because the mean of its divisors is an integer number (443572124505).

Almost surely, 2^887144249009 is an apocalyptic number.

It is an amenable number.

887144249009 is a deficient number, since it is larger than the sum of its proper divisors (1).

887144249009 is an equidigital number, since it uses as much as digits as its factorization.

887144249009 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 4644864, while the sum is 56.

The spelling of 887144249009 in words is "eight hundred eighty-seven billion, one hundred forty-four million, two hundred forty-nine thousand, nine".