68271378541 has 8 divisors (see below), whose sum is σ = 70324624760. Its totient is φ = 66229083648.

The previous prime is 68271378529. The next prime is 68271378559. The reversal of 68271378541 is 14587317286.

It can be written as a sum of positive squares in 4 ways, for example, as 36241117641 + 32030260900 = 190371^2 + 178970^2 .

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 68271378541 - 2⁵ = 68271378509 is a prime.

It is a super-2 number, since 2×68271378541² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (68271378041) 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 7 ways as a sum of consecutive naturals, for example, 2725176 + ... + 2750113.

It is an arithmetic number, because the mean of its divisors is an integer number (8790578095).

Almost surely, 2^68271378541 is an apocalyptic number.

It is an amenable number.

68271378541 is a deficient number, since it is larger than the sum of its proper divisors (2053246219).

68271378541 is a wasteful number, since it uses less digits than its factorization.

68271378541 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5475663.

The product of its digits is 2257920, while the sum is 52.

The spelling of 68271378541 in words is "sixty-eight billion, two hundred seventy-one million, three hundred seventy-eight thousand, five hundred forty-one".