33428067539 has 4 divisors (see below), whose sum is σ = 33428517456. Its totient is φ = 33427617624.

The previous prime is 33428067503. The next prime is 33428067551. The reversal of 33428067539 is 93576082433.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 33428067539 - 2¹² = 33428063443 is a prime.

It is a super-2 number, since 2×33428067539² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (33428060539) 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, 84119 + ... + 271904.

It is an arithmetic number, because the mean of its divisors is an integer number (8357129364).

Almost surely, 2^33428067539 is an apocalyptic number.

33428067539 is a deficient number, since it is larger than the sum of its proper divisors (449917).

33428067539 is an equidigital number, since it uses as much as digits as its factorization.

33428067539 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 449916.

The product of its (nonzero) digits is 3265920, while the sum is 50.

The spelling of 33428067539 in words is "thirty-three billion, four hundred twenty-eight million, sixty-seven thousand, five hundred thirty-nine".