428048253021 has 8 divisors (see below), whose sum is σ = 570873028320. Its totient is φ = 285294489872.

The previous prime is 428048253001. The next prime is 428048253047. The reversal of 428048253021 is 120352840824.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 428048253021 - 2⁷ = 428048252893 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (428048253001) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 17738970 + ... + 17763083.

It is an arithmetic number, because the mean of its divisors is an integer number (71359128540).

Almost surely, 2^428048253021 is an apocalyptic number.

It is an amenable number.

428048253021 is a deficient number, since it is larger than the sum of its proper divisors (142824775299).

428048253021 is a wasteful number, since it uses less digits than its factorization.

428048253021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 35506075.

The product of its (nonzero) digits is 122880, while the sum is 39.

The spelling of 428048253021 in words is "four hundred twenty-eight billion, forty-eight million, two hundred fifty-three thousand, twenty-one".