428912250321 has 32 divisors (see below), whose sum is σ = 578205403776. Its totient is φ = 282801024000.

The previous prime is 428912250301. The next prime is 428912250323. The reversal of 428912250321 is 123052219824.

It is not a de Polignac number, because 428912250321 - 2¹¹ = 428912248273 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 428912250321.

It is not an unprimeable number, because it can be changed into a prime (428912250323) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 123925531 + ... + 123928991.

It is an arithmetic number, because the mean of its divisors is an integer number (18068918868).

Almost surely, 2^428912250321 is an apocalyptic number.

It is an amenable number.

428912250321 is a deficient number, since it is larger than the sum of its proper divisors (149293153455).

428912250321 is a wasteful number, since it uses less digits than its factorization.

428912250321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4833.

The product of its (nonzero) digits is 69120, while the sum is 39.

The spelling of 428912250321 in words is "four hundred twenty-eight billion, nine hundred twelve million, two hundred fifty thousand, three hundred twenty-one".