671276316253 has 2 divisors, whose sum is σ = 671276316254. Its totient is φ = 671276316252.

The previous prime is 671276316241. The next prime is 671276316257. The reversal of 671276316253 is 352613672176.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 560165427364 + 111110888889 = 748442^2 + 333333^2 .

It is a cyclic number.

It is not a de Polignac number, because 671276316253 - 2²¹ = 671274219101 is a prime.

It is a super-2 number, since 2×671276316253² (a number of 24 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 671276316197 and 671276316206.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (671276316257) 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 as a sum of consecutive naturals, namely, 335638158126 + 335638158127.

It is an arithmetic number, because the mean of its divisors is an integer number (335638158127).

Almost surely, 2^671276316253 is an apocalyptic number.

It is an amenable number.

671276316253 is a deficient number, since it is larger than the sum of its proper divisors (1).

671276316253 is an equidigital number, since it uses as much as digits as its factorization.

671276316253 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1905120, while the sum is 49.

The spelling of 671276316253 in words is "six hundred seventy-one billion, two hundred seventy-six million, three hundred sixteen thousand, two hundred fifty-three".