671054188522007 has 2 divisors, whose sum is σ = 671054188522008. Its totient is φ = 671054188522006.

The previous prime is 671054188522001. The next prime is 671054188522033. The reversal of 671054188522007 is 700225881450176.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 671054188522007 - 2²⁰ = 671054187473431 is a prime.

It is a super-2 number, since 2×671054188522007² (a number of 30 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (671054188522001) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 335527094261003 + 335527094261004.

It is an arithmetic number, because the mean of its divisors is an integer number (335527094261004).

Almost surely, 2^{671054188522007} is an apocalyptic number.

671054188522007 is a deficient number, since it is larger than the sum of its proper divisors (1).

671054188522007 is an equidigital number, since it uses as much as digits as its factorization.

671054188522007 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 7526400, while the sum is 56.

The spelling of 671054188522007 in words is "six hundred seventy-one trillion, fifty-four billion, one hundred eighty-eight million, five hundred twenty-two thousand, seven".