16263783794 has 4 divisors (see below), whose sum is σ = 24395675694. Its totient is φ = 8131891896.

The previous prime is 16263783793. The next prime is 16263783829. The reversal of 16263783794 is 49738736261.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 16151105569 + 112678225 = 127087^2 + 10615^2 .

It is not an unprimeable number, because it can be changed into a prime (16263783793) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4065945947 + ... + 4065945950.

Almost surely, 2^16263783794 is an apocalyptic number.

16263783794 is a deficient number, since it is larger than the sum of its proper divisors (8131891900).

16263783794 is an equidigital number, since it uses as much as digits as its factorization.

16263783794 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8131891899.

The product of its digits is 9144576, while the sum is 56.

The spelling of 16263783794 in words is "sixteen billion, two hundred sixty-three million, seven hundred eighty-three thousand, seven hundred ninety-four".