8981688755 has 16 divisors (see below), whose sum is σ = 11678328480. Its totient is φ = 6591932928.

The previous prime is 8981688701. The next prime is 8981688757. The reversal of 8981688755 is 5578861898.

It is a cyclic number.

It is not a de Polignac number, because 8981688755 - 2¹² = 8981684659 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (65).

It is a junction number, because it is equal to n+sod(n) for n = 8981688691 and 8981688700.

It is not an unprimeable number, because it can be changed into a prime (8981688757) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 413270 + ... + 434459.

It is an arithmetic number, because the mean of its divisors is an integer number (729895530).

Almost surely, 2^8981688755 is an apocalyptic number.

8981688755 is a deficient number, since it is larger than the sum of its proper divisors (2696639725).

8981688755 is a wasteful number, since it uses less digits than its factorization.

8981688755 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 847910.

The product of its digits is 38707200, while the sum is 65.

The square root of 8981688755 is about 94771.7719313087. The cubic root of 8981688755 is about 2078.6721643322.

The spelling of 8981688755 in words is "eight billion, nine hundred eighty-one million, six hundred eighty-eight thousand, seven hundred fifty-five".