428013688750 has 40 divisors (see below), whose sum is σ = 844493581800. Its totient is φ = 162194652000.

The previous prime is 428013688717. The next prime is 428013688771. The reversal of 428013688750 is 57886310824.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 8987065 + ... + 9034564.

It is an arithmetic number, because the mean of its divisors is an integer number (21112339545).

Almost surely, 2^428013688750 is an apocalyptic number.

428013688750 is a deficient number, since it is larger than the sum of its proper divisors (416479893050).

428013688750 is a wasteful number, since it uses less digits than its factorization.

428013688750 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18021670 (or 18021655 counting only the distinct ones).

The product of its (nonzero) digits is 2580480, while the sum is 52.

The spelling of 428013688750 in words is "four hundred twenty-eight billion, thirteen million, six hundred eighty-eight thousand, seven hundred fifty".