21369425033 has 8 divisors (see below), whose sum is σ = 23351025600. Its totient is φ = 19394312080.

The previous prime is 21369424997. The next prime is 21369425041. The reversal of 21369425033 is 33052496312.

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

It is not a de Polignac number, because 21369425033 - 2⁶ = 21369424969 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (21369425333) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1615010 + ... + 1628187.

It is an arithmetic number, because the mean of its divisors is an integer number (2918878200).

Almost surely, 2^21369425033 is an apocalyptic number.

It is an amenable number.

21369425033 is a deficient number, since it is larger than the sum of its proper divisors (1981600567).

21369425033 is a wasteful number, since it uses less digits than its factorization.

21369425033 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3243807.

The product of its (nonzero) digits is 116640, while the sum is 38.

The spelling of 21369425033 in words is "twenty-one billion, three hundred sixty-nine million, four hundred twenty-five thousand, thirty-three".