428258770033 has 4 divisors (see below), whose sum is σ = 428260610548. Its totient is φ = 428256929520.

The previous prime is 428258770013. The next prime is 428258770063. The reversal of 428258770033 is 330077852824.

It is a happy number.

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

It can be written as a sum of positive squares in 2 ways, for example, as 372187845184 + 56070924849 = 610072^2 + 236793^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-428258770033 is a prime.

It is a super-2 number, since 2×428258770033² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (428258770013) 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, 510378 + ... + 1056883.

It is an arithmetic number, because the mean of its divisors is an integer number (107065152637).

Almost surely, 2^428258770033 is an apocalyptic number.

It is an amenable number.

428258770033 is a deficient number, since it is larger than the sum of its proper divisors (1840515).

428258770033 is a wasteful number, since it uses less digits than its factorization.

428258770033 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1840514.

The product of its (nonzero) digits is 2257920, while the sum is 49.

The spelling of 428258770033 in words is "four hundred twenty-eight billion, two hundred fifty-eight million, seven hundred seventy thousand, thirty-three".