16780807863 has 24 divisors (see below), whose sum is σ = 25204767120. Its totient is φ = 10745441280.

The previous prime is 16780807861. The next prime is 16780807891. The reversal of 16780807863 is 36870808761.

It is not a de Polignac number, because 16780807863 - 2¹ = 16780807861 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16780807861) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 116193 + ... + 216938.

It is an arithmetic number, because the mean of its divisors is an integer number (1050198630).

Almost surely, 2^16780807863 is an apocalyptic number.

16780807863 is a deficient number, since it is larger than the sum of its proper divisors (8423959257).

16780807863 is a wasteful number, since it uses less digits than its factorization.

16780807863 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 333359 (or 333356 counting only the distinct ones).

The product of its (nonzero) digits is 2709504, while the sum is 54.

The spelling of 16780807863 in words is "sixteen billion, seven hundred eighty million, eight hundred seven thousand, eight hundred sixty-three".