21337504067 has 8 divisors (see below), whose sum is σ = 23292284400. Its totient is φ = 19385224960.

The previous prime is 21337504031. The next prime is 21337504081. The reversal of 21337504067 is 76040573312.

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

It is a cyclic number.

It is not a de Polignac number, because 21337504067 - 2¹² = 21337499971 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 21337504067.

It is not an unprimeable number, because it can be changed into a prime (21337504567) 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, 607442 + ... + 641607.

It is an arithmetic number, because the mean of its divisors is an integer number (2911535550).

Almost surely, 2^21337504067 is an apocalyptic number.

21337504067 is a deficient number, since it is larger than the sum of its proper divisors (1954780333).

21337504067 is a wasteful number, since it uses less digits than its factorization.

21337504067 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1250613.

The product of its (nonzero) digits is 105840, while the sum is 38.

The spelling of 21337504067 in words is "twenty-one billion, three hundred thirty-seven million, five hundred four thousand, sixty-seven".