68408980271 has 16 divisors (see below), whose sum is σ = 73167494400. Its totient is φ = 63732609408.

The previous prime is 68408980253. The next prime is 68408980301. The reversal of 68408980271 is 17208980486.

It is a happy number.

It is not a de Polignac number, because 68408980271 - 2³⁰ = 67335238447 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (68408980571) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4929140 + ... + 4942998.

It is an arithmetic number, because the mean of its divisors is an integer number (4572968400).

Almost surely, 2^68408980271 is an apocalyptic number.

68408980271 is a deficient number, since it is larger than the sum of its proper divisors (4758514129).

68408980271 is a wasteful number, since it uses less digits than its factorization.

68408980271 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16798.

The product of its (nonzero) digits is 1548288, while the sum is 53.

The spelling of 68408980271 in words is "sixty-eight billion, four hundred eight million, nine hundred eighty thousand, two hundred seventy-one".