67982665141 has 4 divisors (see below), whose sum is σ = 67983292300. Its totient is φ = 67982037984.

The previous prime is 67982665139. The next prime is 67982665183. The reversal of 67982665141 is 14156628976.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It can be written as a sum of positive squares in 2 ways, for example, as 20715557041 + 47267108100 = 143929^2 + 217410^2 .

It is a cyclic number.

It is not a de Polignac number, because 67982665141 - 2¹ = 67982665139 is a prime.

It is a deceptive number, since it divides R_67982665140.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (67982665111) 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 3 ways as a sum of consecutive naturals, for example, 104526 + ... + 383263.

It is an arithmetic number, because the mean of its divisors is an integer number (16995823075).

Almost surely, 2^67982665141 is an apocalyptic number.

67982665141 is the 139369-th nonagonal number.

It is an amenable number.

67982665141 is a deficient number, since it is larger than the sum of its proper divisors (627159).

67982665141 is a wasteful number, since it uses less digits than its factorization.

67982665141 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 627158.

The product of its digits is 4354560, while the sum is 55.

The spelling of 67982665141 in words is "sixty-seven billion, nine hundred eighty-two million, six hundred sixty-five thousand, one hundred forty-one".