8681400220 has 12 divisors (see below), whose sum is σ = 18230940504. Its totient is φ = 3472560080.

The previous prime is 8681400199. The next prime is 8681400223. The reversal of 8681400220 is 220041868.

8681400220 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8681400223) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 217034986 + ... + 217035025.

It is an arithmetic number, because the mean of its divisors is an integer number (1519245042).

Almost surely, 2^8681400220 is an apocalyptic number.

It is an amenable number.

8681400220 is an abundant number, since it is smaller than the sum of its proper divisors (9549540284).

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

8681400220 is a wasteful number, since it uses less digits than its factorization.

8681400220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 434070020 (or 434070018 counting only the distinct ones).

The product of its (nonzero) digits is 6144, while the sum is 31.

The square root of 8681400220 is about 93174.0318973049. The cubic root of 8681400220 is about 2055.2433863396.

The spelling of 8681400220 in words is "eight billion, six hundred eighty-one million, four hundred thousand, two hundred twenty".