8781884855881 has 32 divisors (see below), whose sum is σ = 9502822592640. Its totient is φ = 8089826793984.

The previous prime is 8781884855879. The next prime is 8781884855923. The reversal of 8781884855881 is 1885584881878.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 8781884855881 - 2¹ = 8781884855879 is a prime.

It is a super-2 number, since 2×8781884855881² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (8781884855831) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 84516946 + ... + 84620788.

It is an arithmetic number, because the mean of its divisors is an integer number (296963206020).

Almost surely, 2^{8781884855881} is an apocalyptic number.

It is an amenable number.

8781884855881 is a deficient number, since it is larger than the sum of its proper divisors (720937736759).

8781884855881 is a wasteful number, since it uses less digits than its factorization.

8781884855881 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 104665.

The product of its digits is 1468006400, while the sum is 79.

The spelling of 8781884855881 in words is "eight trillion, seven hundred eighty-one billion, eight hundred eighty-four million, eight hundred fifty-five thousand, eight hundred eighty-one".