1008801280881 has 15 divisors (see below), whose sum is σ = 1506988256521. Its totient is φ = 672528160908.

The previous prime is 1008801280873. The next prime is 1008801280891. The reversal of 1008801280881 is 1880821088001.

The square root of 1008801280881 is 1004391.

It is a perfect power (a square), and thus also a powerful number.

It is not a de Polignac number, because 1008801280881 - 2³ = 1008801280873 is a prime.

It is a super-2 number, since 2×1008801280881² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1008801280841) by changing a digit.

It is a polite number, since it can be written in 14 ways as a sum of consecutive naturals, for example, 8983720 + ... + 9095318.

Almost surely, 2^{1008801280881} is an apocalyptic number.

1008801280881 is the 1004391-st square number.

1008801280881 is the 502196-th centered octagonal number.

It is an amenable number.

1008801280881 is a deficient number, since it is larger than the sum of its proper divisors (498186975640).

1008801280881 is an frugal number, since it uses more digits than its factorization.

1008801280881 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 223210 (or 111602 counting only the distinct ones).

The product of its (nonzero) digits is 65536, while the sum is 45.

The spelling of 1008801280881 in words is "one trillion, eight billion, eight hundred one million, two hundred eighty thousand, eight hundred eighty-one".