671314758269 has 2 divisors, whose sum is σ = 671314758270. Its totient is φ = 671314758268.

The previous prime is 671314758241. The next prime is 671314758271. The reversal of 671314758269 is 962857413176.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 671314758244 + 25 = 819338^2 + 5^2 .

It is a cyclic number.

It is not a de Polignac number, because 671314758269 - 2⁸ = 671314758013 is a prime.

It is a super-2 number, since 2×671314758269² (a number of 24 digits) contains 22 as substring.

Together with 671314758271, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (671314758469) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 335657379134 + 335657379135.

It is an arithmetic number, because the mean of its divisors is an integer number (335657379135).

Almost surely, 2^671314758269 is an apocalyptic number.

It is an amenable number.

671314758269 is a deficient number, since it is larger than the sum of its proper divisors (1).

671314758269 is an equidigital number, since it uses as much as digits as its factorization.

671314758269 is an evil number, because the sum of its binary digits is even.

The product of its digits is 15240960, while the sum is 59.

The spelling of 671314758269 in words is "six hundred seventy-one billion, three hundred fourteen million, seven hundred fifty-eight thousand, two hundred sixty-nine".