271887099791 has 4 divisors (see below), whose sum is σ = 271888378872. Its totient is φ = 271885820712.

The previous prime is 271887099749. The next prime is 271887099793. The reversal of 271887099791 is 197990788172.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 271887099791 - 2¹⁴ = 271887083407 is a prime.

It is a super-2 number, since 2×271887099791² (a number of 24 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 (271887099793) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 235685 + ... + 774158.

It is an arithmetic number, because the mean of its divisors is an integer number (67972094718).

Almost surely, 2^271887099791 is an apocalyptic number.

271887099791 is a deficient number, since it is larger than the sum of its proper divisors (1279081).

271887099791 is a wasteful number, since it uses less digits than its factorization.

271887099791 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1279080.

The product of its (nonzero) digits is 32006016, while the sum is 68.

The spelling of 271887099791 in words is "two hundred seventy-one billion, eight hundred eighty-seven million, ninety-nine thousand, seven hundred ninety-one".