68323697249 has 4 divisors (see below), whose sum is σ = 68324256000. Its totient is φ = 68323138500.

The previous prime is 68323697237. The next prime is 68323697251. The reversal of 68323697249 is 94279632386.

68323697249 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, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 68323697249 - 2¹⁶ = 68323631713 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (68323694249) 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, 8249 + ... + 369750.

It is an arithmetic number, because the mean of its divisors is an integer number (17081064000).

Almost surely, 2^68323697249 is an apocalyptic number.

It is an amenable number.

68323697249 is a deficient number, since it is larger than the sum of its proper divisors (558751).

68323697249 is a wasteful number, since it uses less digits than its factorization.

68323697249 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 558750.

The product of its digits is 23514624, while the sum is 59.

The spelling of 68323697249 in words is "sixty-eight billion, three hundred twenty-three million, six hundred ninety-seven thousand, two hundred forty-nine".