881382664 has 16 divisors (see below), whose sum is σ = 1671162300. Its totient is φ = 435739392.

The previous prime is 881382641. The next prime is 881382683. The reversal of 881382664 is 466283188.

It can be written as a sum of positive squares in 2 ways, for example, as 711288900 + 170093764 = 26670^2 + 13042^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 618237 + ... + 619660.

Almost surely, 2^881382664 is an apocalyptic number.

It is an amenable number.

881382664 is a deficient number, since it is larger than the sum of its proper divisors (789779636).

881382664 is a wasteful number, since it uses less digits than its factorization.

881382664 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1237992 (or 1237988 counting only the distinct ones).

The product of its digits is 442368, while the sum is 46.

The square root of 881382664 is about 29688.0895983558. The cubic root of 881382664 is about 958.7855969472.

The spelling of 881382664 in words is "eight hundred eighty-one million, three hundred eighty-two thousand, six hundred sixty-four".