671815284852231 has 24 divisors (see below), whose sum is σ = 1100048419644720. Its totient is φ = 391665591167616.

The previous prime is 671815284852211. The next prime is 671815284852247. The reversal of 671815284852231 is 132258482518176.

It is a happy number.

671815284852231 is a `hidden beast` number, since 6 + 7 + 1 + 8 + 1 + 528 + 4 + 85 + 2 + 23 + 1 = 666.

It is not a de Polignac number, because 671815284852231 - 2⁵ = 671815284852199 is a prime.

It is a super-2 number, since 2×671815284852231² (a number of 30 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (671815284852211) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 151105549926 + ... + 151105554371.

It is an arithmetic number, because the mean of its divisors is an integer number (45835350818530).

Almost surely, 2^{671815284852231} is an apocalyptic number.

671815284852231 is a deficient number, since it is larger than the sum of its proper divisors (428233134792489).

671815284852231 is a wasteful number, since it uses less digits than its factorization.

671815284852231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 302211104335 (or 302211104332 counting only the distinct ones).

The product of its digits is 51609600, while the sum is 63.

The spelling of 671815284852231 in words is "six hundred seventy-one trillion, eight hundred fifteen billion, two hundred eighty-four million, eight hundred fifty-two thousand, two hundred thirty-one".