1628720450222 has 16 divisors (see below), whose sum is σ = 2532354025344. Its totient is φ = 784820448000.

The previous prime is 1628720450207. The next prime is 1628720450233. The reversal of 1628720450222 is 2220540278261.

It is a self number, because there is not a number n which added to its sum of digits gives 1628720450222.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 54486479 + ... + 54516362.

It is an arithmetic number, because the mean of its divisors is an integer number (158272126584).

Almost surely, 2^{1628720450222} is an apocalyptic number.

1628720450222 is a deficient number, since it is larger than the sum of its proper divisors (903633575122).

1628720450222 is a wasteful number, since it uses less digits than its factorization.

1628720450222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 109003115.

The product of its (nonzero) digits is 215040, while the sum is 41.

The spelling of 1628720450222 in words is "one trillion, six hundred twenty-eight billion, seven hundred twenty million, four hundred fifty thousand, two hundred twenty-two".