19702845386 has 16 divisors (see below), whose sum is σ = 33788075136. Its totient is φ = 8441134416.

The previous prime is 19702845361. The next prime is 19702845439. The reversal of 19702845386 is 68354820791.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 203321 + ... + 284156.

It is an arithmetic number, because the mean of its divisors is an integer number (2111754696).

It is a 1-persistent number, because it is pandigital, but 2⋅19702845386 = 39405690772 is not.

Almost surely, 2^19702845386 is an apocalyptic number.

19702845386 is a deficient number, since it is larger than the sum of its proper divisors (14085229750).

19702845386 is a wasteful number, since it uses less digits than its factorization.

19702845386 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 490373.

The product of its (nonzero) digits is 2903040, while the sum is 53.

The spelling of 19702845386 in words is "nineteen billion, seven hundred two million, eight hundred forty-five thousand, three hundred eighty-six".