671526282491 has 2 divisors, whose sum is σ = 671526282492. Its totient is φ = 671526282490.

The previous prime is 671526282439. The next prime is 671526282517. The reversal of 671526282491 is 194282625176.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-671526282491 is a prime.

It is not a weakly prime, because it can be changed into another prime (671526212491) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 335763141245 + 335763141246.

It is an arithmetic number, because the mean of its divisors is an integer number (335763141246).

Almost surely, 2^671526282491 is an apocalyptic number.

671526282491 is a deficient number, since it is larger than the sum of its proper divisors (1).

671526282491 is an equidigital number, since it uses as much as digits as its factorization.

671526282491 is an evil number, because the sum of its binary digits is even.

The product of its digits is 2903040, while the sum is 53.

The spelling of 671526282491 in words is "six hundred seventy-one billion, five hundred twenty-six million, two hundred eighty-two thousand, four hundred ninety-one".