881163449 has 2 divisors, whose sum is σ = 881163450. Its totient is φ = 881163448.

The previous prime is 881163433. The next prime is 881163487. The reversal of 881163449 is 944361188.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 852348025 + 28815424 = 29195^2 + 5368^2 .

It is a cyclic number.

It is not a de Polignac number, because 881163449 - 2⁴ = 881163433 is a prime.

It is not a weakly prime, because it can be changed into another prime (881103449) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 440581724 + 440581725.

It is an arithmetic number, because the mean of its divisors is an integer number (440581725).

Almost surely, 2^881163449 is an apocalyptic number.

It is an amenable number.

881163449 is a deficient number, since it is larger than the sum of its proper divisors (1).

881163449 is an equidigital number, since it uses as much as digits as its factorization.

881163449 is an evil number, because the sum of its binary digits is even.

The product of its digits is 165888, while the sum is 44.

The square root of 881163449 is about 29684.3973999810. The cubic root of 881163449 is about 958.7061015435.

The spelling of 881163449 in words is "eight hundred eighty-one million, one hundred sixty-three thousand, four hundred forty-nine".