271991956767 has 8 divisors (see below), whose sum is σ = 362663249280. Its totient is φ = 181324317720.

The previous prime is 271991956711. The next prime is 271991956781. The reversal of 271991956767 is 767659199172.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 271991956767 - 2⁶ = 271991956703 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (271991956667) 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, 734659 + ... + 1041012.

It is an arithmetic number, because the mean of its divisors is an integer number (45332906160).

Almost surely, 2^271991956767 is an apocalyptic number.

271991956767 is a deficient number, since it is larger than the sum of its proper divisors (90671292513).

271991956767 is a wasteful number, since it uses less digits than its factorization.

271991956767 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1826733.

The product of its digits is 90016920, while the sum is 69.

The spelling of 271991956767 in words is "two hundred seventy-one billion, nine hundred ninety-one million, nine hundred fifty-six thousand, seven hundred sixty-seven".