16486782874 has 8 divisors (see below), whose sum is σ = 24975027828. Its totient is φ = 8161773600.

The previous prime is 16486782853. The next prime is 16486782877. The reversal of 16486782874 is 47828768461.

It can be written as a sum of positive squares in 2 ways, for example, as 13198563225 + 3288219649 = 114885^2 + 57343^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not an unprimeable number, because it can be changed into a prime (16486782877) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 40808667 + ... + 40809070.

Almost surely, 2^16486782874 is an apocalyptic number.

16486782874 is a deficient number, since it is larger than the sum of its proper divisors (8488244954).

16486782874 is a wasteful number, since it uses less digits than its factorization.

16486782874 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 81617840.

The product of its digits is 28901376, while the sum is 61.

The spelling of 16486782874 in words is "sixteen billion, four hundred eighty-six million, seven hundred eighty-two thousand, eight hundred seventy-four".