271991956769 has 8 divisors (see below), whose sum is σ = 293753716200. Its totient is φ = 250350097536.

The previous prime is 271991956711. The next prime is 271991956781. The reversal of 271991956769 is 967659199172.

It can be written as a sum of positive squares in 4 ways, for example, as 53330974225 + 218660982544 = 230935^2 + 467612^2 .

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 271991956769 - 2¹⁶ = 271991891233 is a prime.

It is a super-2 number, since 2×271991956769² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (271991956799) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 29970332 + ... + 29979405.

It is an arithmetic number, because the mean of its divisors is an integer number (36719214525).

Almost surely, 2^271991956769 is an apocalyptic number.

It is an amenable number.

271991956769 is a deficient number, since it is larger than the sum of its proper divisors (21761759431).

271991956769 is a wasteful number, since it uses less digits than its factorization.

271991956769 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 59950099.

The product of its digits is 115736040, while the sum is 71.

The spelling of 271991956769 in words is "two hundred seventy-one billion, nine hundred ninety-one million, nine hundred fifty-six thousand, seven hundred sixty-nine".