68324437621 has 8 divisors (see below), whose sum is σ = 75479241600. Its totient is φ = 61326882240.

The previous prime is 68324437609. The next prime is 68324437667. The reversal of 68324437621 is 12673442386.

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 68324437621 - 2¹¹ = 68324435573 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (68324437691) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 39311236 + ... + 39312973.

It is an arithmetic number, because the mean of its divisors is an integer number (9434905200).

Almost surely, 2^68324437621 is an apocalyptic number.

It is an amenable number.

68324437621 is a deficient number, since it is larger than the sum of its proper divisors (7154803979).

68324437621 is a wasteful number, since it uses less digits than its factorization.

68324437621 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 78624299.

The product of its digits is 1161216, while the sum is 46.

The spelling of 68324437621 in words is "sixty-eight billion, three hundred twenty-four million, four hundred thirty-seven thousand, six hundred twenty-one".