881163648 has 48 divisors (see below), whose sum is σ = 2535643500. Its totient is φ = 293720832.

The previous prime is 881163581. The next prime is 881163733. The reversal of 881163648 is 846361188.

It is a happy number.

881163648 is a `hidden beast` number, since 8 + 8 + 1 + 1 + 636 + 4 + 8 = 666.

It is a tau number, because it is divible by the number of its divisors (48).

It is a nude number because it is divisible by every one of its digits.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 381298 + ... + 383601.

Almost surely, 2^881163648 is an apocalyptic number.

It is an amenable number.

881163648 is an abundant number, since it is smaller than the sum of its proper divisors (1654479852).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

881163648 is a wasteful number, since it uses less digits than its factorization.

881163648 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 764919 (or 764904 counting only the distinct ones).

The product of its digits is 221184, while the sum is 45.

The square root of 881163648 is about 29684.4007519101. The cubic root of 881163648 is about 958.7061737141.

The spelling of 881163648 in words is "eight hundred eighty-one million, one hundred sixty-three thousand, six hundred forty-eight".