4216643642 has 16 divisors (see below), whose sum is σ = 6446926080. Its totient is φ = 2067700752.

The previous prime is 4216643633. The next prime is 4216643663. The reversal of 4216643642 is 2463466124.

It is a junction number, because it is equal to n+sod(n) for n = 4216643596 and 4216643605.

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, 313859 + ... + 327017.

It is an arithmetic number, because the mean of its divisors is an integer number (402932880).

Almost surely, 2^4216643642 is an apocalyptic number.

4216643642 is a deficient number, since it is larger than the sum of its proper divisors (2230282438).

4216643642 is a wasteful number, since it uses less digits than its factorization.

4216643642 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16237.

The product of its digits is 165888, while the sum is 38.

The square root of 4216643642 is about 64935.6885079384. The cubic root of 4216643642 is about 1615.5570536005.

The spelling of 4216643642 in words is "four billion, two hundred sixteen million, six hundred forty-three thousand, six hundred forty-two".