863441144388 has 48 divisors (see below), whose sum is σ = 2263703400000. Its totient is φ = 284579849664.

The previous prime is 863441144351. The next prime is 863441144389. The reversal of 863441144388 is 883441144368.

863441144388 is a `hidden beast` number, since 86 + 3 + 4 + 41 + 1 + 443 + 88 = 666.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is not an unprimeable number, because it can be changed into a prime (863441144389) 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, 44905138 + ... + 44924361.

It is an arithmetic number, because the mean of its divisors is an integer number (47160487500).

Almost surely, 2^863441144388 is an apocalyptic number.

It is an amenable number.

863441144388 is an abundant number, since it is smaller than the sum of its proper divisors (1400262255612).

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

863441144388 is a wasteful number, since it uses less digits than its factorization.

863441144388 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 89829601 (or 89829593 counting only the distinct ones).

The product of its digits is 7077888, while the sum is 54.

The spelling of 863441144388 in words is "eight hundred sixty-three billion, four hundred forty-one million, one hundred forty-four thousand, three hundred eighty-eight".