428585423811 has 16 divisors (see below), whose sum is σ = 636907132800. Its totient is φ = 254762851968.

The previous prime is 428585423767. The next prime is 428585423873. The reversal of 428585423811 is 118324585824.

It is a happy number.

It is not a de Polignac number, because 428585423811 - 2⁷ = 428585423683 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (51).

It is not an unprimeable number, because it can be changed into a prime (428585423881) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 221147341 + ... + 221149278.

It is an arithmetic number, because the mean of its divisors is an integer number (39806695800).

Almost surely, 2^428585423811 is an apocalyptic number.

428585423811 is a deficient number, since it is larger than the sum of its proper divisors (208321708989).

428585423811 is a wasteful number, since it uses less digits than its factorization.

428585423811 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 442296658.

The product of its digits is 2457600, while the sum is 51.

The spelling of 428585423811 in words is "four hundred twenty-eight billion, five hundred eighty-five million, four hundred twenty-three thousand, eight hundred eleven".