68271449469 has 4 divisors (see below), whose sum is σ = 91028599296. Its totient is φ = 45514299644.

The previous prime is 68271449459. The next prime is 68271449509. The reversal of 68271449469 is 96494417286.

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 a cyclic number.

It is not a de Polignac number, because 68271449469 - 2⁴ = 68271449453 is a prime.

It is a super-2 number, since 2×68271449469² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (68271449459) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 11378574909 + ... + 11378574914.

It is an arithmetic number, because the mean of its divisors is an integer number (22757149824).

Almost surely, 2^68271449469 is an apocalyptic number.

It is an amenable number.

68271449469 is a deficient number, since it is larger than the sum of its proper divisors (22757149827).

68271449469 is a wasteful number, since it uses less digits than its factorization.

68271449469 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22757149826.

The product of its digits is 20901888, while the sum is 60.

The spelling of 68271449469 in words is "sixty-eight billion, two hundred seventy-one million, four hundred forty-nine thousand, four hundred sixty-nine".