271680731531 has 4 divisors (see below), whose sum is σ = 296378979864. Its totient is φ = 246982483200.

The previous prime is 271680731503. The next prime is 271680731557. The reversal of 271680731531 is 135137086172.

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 271680731531 - 2²² = 271676537227 is a prime.

It is a super-2 number, since 2×271680731531² (a number of 24 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (271680731731) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 12349124150 + ... + 12349124171.

It is an arithmetic number, because the mean of its divisors is an integer number (74094744966).

Almost surely, 2^271680731531 is an apocalyptic number.

271680731531 is a deficient number, since it is larger than the sum of its proper divisors (24698248333).

271680731531 is a wasteful number, since it uses less digits than its factorization.

271680731531 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24698248332.

The product of its (nonzero) digits is 211680, while the sum is 44.

The spelling of 271680731531 in words is "two hundred seventy-one billion, six hundred eighty million, seven hundred thirty-one thousand, five hundred thirty-one".