863800263066 has 64 divisors (see below), whose sum is σ = 1865851972992. Its totient is φ = 265020118272.

The previous prime is 863800263049. The next prime is 863800263083. The reversal of 863800263066 is 660362008368.

It is an interprime number because it is at equal distance from previous prime (863800263049) and next prime (863800263083).

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 44578156 + ... + 44597528.

It is an arithmetic number, because the mean of its divisors is an integer number (29153937078).

Almost surely, 2^863800263066 is an apocalyptic number.

863800263066 is an abundant number, since it is smaller than the sum of its proper divisors (1002051709926).

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

863800263066 is a wasteful number, since it uses less digits than its factorization.

863800263066 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21007.

The product of its (nonzero) digits is 1492992, while the sum is 48.

The spelling of 863800263066 in words is "eight hundred sixty-three billion, eight hundred million, two hundred sixty-three thousand, sixty-six".