68282031969 has 10 divisors (see below), whose sum is σ = 102001554050. Its totient is φ = 45521354592.

The previous prime is 68282031949. The next prime is 68282031971. The reversal of 68282031969 is 96913028286.

It can be written as a sum of positive squares in only one way, i.e., 55941710400 + 12340321569 = 236520^2 + 111087^2 .

It is not a de Polignac number, because 68282031969 - 2¹⁹ = 68281507681 is a prime.

It is a super-2 number, since 2×68282031969² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (68282031919) 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 9 ways as a sum of consecutive naturals, for example, 421493944 + ... + 421494105.

It is an arithmetic number, because the mean of its divisors is an integer number (10200155405).

Almost surely, 2^68282031969 is an apocalyptic number.

It is an amenable number.

68282031969 is a deficient number, since it is larger than the sum of its proper divisors (33719522081).

68282031969 is an equidigital number, since it uses as much as digits as its factorization.

68282031969 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 842988061 (or 842988052 counting only the distinct ones).

The product of its (nonzero) digits is 2239488, while the sum is 54.

The spelling of 68282031969 in words is "sixty-eight billion, two hundred eighty-two million, thirty-one thousand, nine hundred sixty-nine".