12642202533 has 4 divisors (see below), whose sum is σ = 16856270048. Its totient is φ = 8428135020.

The previous prime is 12642202511. The next prime is 12642202607. The reversal of 12642202533 is 33520224621.

12642202533 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 not a de Polignac number, because 12642202533 - 2²¹ = 12640105381 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 12642202533.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12642202633) 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 3 ways as a sum of consecutive naturals, for example, 2107033753 + ... + 2107033758.

It is an arithmetic number, because the mean of its divisors is an integer number (4214067512).

Almost surely, 2^12642202533 is an apocalyptic number.

It is an amenable number.

12642202533 is a deficient number, since it is larger than the sum of its proper divisors (4214067515).

12642202533 is an equidigital number, since it uses as much as digits as its factorization.

12642202533 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4214067514.

The product of its (nonzero) digits is 17280, while the sum is 30.

The spelling of 12642202533 in words is "twelve billion, six hundred forty-two million, two hundred two thousand, five hundred thirty-three".