428735224351 has 4 divisors (see below), whose sum is σ = 489983113552. Its totient is φ = 367487335152.

The previous prime is 428735224349. The next prime is 428735224387. The reversal of 428735224351 is 153422537824.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 428735224351 - 2¹ = 428735224349 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (428735224301) 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, 30623944590 + ... + 30623944603.

It is an arithmetic number, because the mean of its divisors is an integer number (122495778388).

Almost surely, 2^428735224351 is an apocalyptic number.

428735224351 is a deficient number, since it is larger than the sum of its proper divisors (61247889201).

428735224351 is an equidigital number, since it uses as much as digits as its factorization.

428735224351 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 61247889200.

The product of its digits is 1612800, while the sum is 46.

The spelling of 428735224351 in words is "four hundred twenty-eight billion, seven hundred thirty-five million, two hundred twenty-four thousand, three hundred fifty-one".