428014826873 has 4 divisors (see below), whose sum is σ = 428939265408. Its totient is φ = 427090388340.

The previous prime is 428014826843. The next prime is 428014826947. The reversal of 428014826873 is 378628410824.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 428014826873 - 2²⁴ = 427998049657 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (428014826843) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 462218573 + ... + 462219498.

It is an arithmetic number, because the mean of its divisors is an integer number (107234816352).

Almost surely, 2^428014826873 is an apocalyptic number.

It is an amenable number.

428014826873 is a deficient number, since it is larger than the sum of its proper divisors (924438535).

428014826873 is an equidigital number, since it uses as much as digits as its factorization.

428014826873 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 924438534.

The product of its (nonzero) digits is 4128768, while the sum is 53.

The spelling of 428014826873 in words is "four hundred twenty-eight billion, fourteen million, eight hundred twenty-six thousand, eight hundred seventy-three".