671322271587 has 12 divisors (see below), whose sum is σ = 983866249800. Its totient is φ = 406861982560.

The previous prime is 671322271553. The next prime is 671322271651. The reversal of 671322271587 is 785172223176.

It is not a de Polignac number, because 671322271587 - 2¹⁸ = 671322009443 is a prime.

It is not an unprimeable number, because it can be changed into a prime (671322271517) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 924685962 + ... + 924686687.

It is an arithmetic number, because the mean of its divisors is an integer number (81988854150).

Almost surely, 2^671322271587 is an apocalyptic number.

671322271587 is a deficient number, since it is larger than the sum of its proper divisors (312543978213).

671322271587 is a wasteful number, since it uses less digits than its factorization.

671322271587 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1849372674 (or 1849372663 counting only the distinct ones).

The product of its digits is 1975680, while the sum is 51.

The spelling of 671322271587 in words is "six hundred seventy-one billion, three hundred twenty-two million, two hundred seventy-one thousand, five hundred eighty-seven".