863801010 has 80 divisors (see below), whose sum is σ = 2352240000. Its totient is φ = 227414304.

The previous prime is 863800999. The next prime is 863801063. The reversal of 863801010 is 10108368.

863801010 is a `hidden beast` number, since 8 + 638 + 0 + 10 + 10 = 666.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a Curzon number.

It is an unprimeable number.

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 39 ways as a sum of consecutive naturals, for example, 57241 + ... + 70739.

It is an arithmetic number, because the mean of its divisors is an integer number (29403000).

Almost surely, 2^863801010 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 863801010, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1176120000).

863801010 is an abundant number, since it is smaller than the sum of its proper divisors (1488438990).

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

863801010 is a wasteful number, since it uses less digits than its factorization.

863801010 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13597 (or 13588 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 27.

The square root of 863801010 is about 29390.4918298418. The cubic root of 863801010 is about 952.3675059058.

Adding to 863801010 its reverse (10108368), we get a palindrome (873909378).

The spelling of 863801010 in words is "eight hundred sixty-three million, eight hundred one thousand, ten".