16863071642 has 8 divisors (see below), whose sum is σ = 25354690932. Its totient is φ = 8411508000.

The previous prime is 16863071633. The next prime is 16863071663. The reversal of 16863071642 is 24617036861.

It can be written as a sum of positive squares in 2 ways, for example, as 16633518841 + 229552801 = 128971^2 + 15151^2 .

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

It is a junction number, because it is equal to n+sod(n) for n = 16863071593 and 16863071602.

It is an unprimeable number.

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, 10012859 + ... + 10014542.

Almost surely, 2^16863071642 is an apocalyptic number.

16863071642 is a deficient number, since it is larger than the sum of its proper divisors (8491619290).

16863071642 is a wasteful number, since it uses less digits than its factorization.

16863071642 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20027824.

The product of its (nonzero) digits is 290304, while the sum is 44.

The spelling of 16863071642 in words is "sixteen billion, eight hundred sixty-three million, seventy-one thousand, six hundred forty-two".