2863463805 has 30 divisors (see below), whose sum is σ = 5134955166. Its totient is φ = 1526606352.

The previous prime is 2863463791. The next prime is 2863463809. The reversal of 2863463805 is 5083643682.

It is a happy number.

2863463805 is a `hidden beast` number, since 2 + 8 + 6 + 3 + 4 + 638 + 0 + 5 = 666.

It can be written as a sum of positive squares in only one way, i.e., 2290771044 + 572692761 = 47862^2 + 23931^2 .

It is not a de Polignac number, because 2863463805 - 2⁵ = 2863463773 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2863463809) by changing a digit.

It is a polite number, since it can be written in 29 ways as a sum of consecutive naturals, for example, 1075566 + ... + 1078224.

Almost surely, 2^2863463805 is an apocalyptic number.

It is an amenable number.

2863463805 is a deficient number, since it is larger than the sum of its proper divisors (2271491361).

2863463805 is an frugal number, since it uses more digits than its factorization.

2863463805 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5335 (or 2667 counting only the distinct ones).

The product of its (nonzero) digits is 829440, while the sum is 45.

The square root of 2863463805 is about 53511.3427695475. The cubic root of 2863463805 is about 1420.0290619259.

Multiplying 2863463805 by its sum of digits (45), we get a square (128855871225 = 358965²).

2863463805 divided by its sum of digits (45) gives a square (63632529 = 7977²).

The spelling of 2863463805 in words is "two billion, eight hundred sixty-three million, four hundred sixty-three thousand, eight hundred five".