881287680 has 480 divisors, whose sum is σ = 3522524544. Its totient is φ = 184025088.

The previous prime is 881287663. The next prime is 881287691. The reversal of 881287680 is 86782188.

It is a tau number, because it is divible by the number of its divisors (480).

It is a Harshad number since it is a multiple of its sum of digits (48).

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 9085392 + ... + 9085488.

Almost surely, 2^881287680 is an apocalyptic number.

881287680 is a gapful number since it is divisible by the number (80) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 881287680, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1761262272).

881287680 is an abundant number, since it is smaller than the sum of its proper divisors (2641236864).

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

881287680 is a wasteful number, since it uses less digits than its factorization.

881287680 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 156 (or 127 counting only the distinct ones).

The product of its (nonzero) digits is 344064, while the sum is 48.

The square root of 881287680 is about 29686.4898564987. The cubic root of 881287680 is about 958.7511538816.

The spelling of 881287680 in words is "eight hundred eighty-one million, two hundred eighty-seven thousand, six hundred eighty".