647452271927 has 2 divisors, whose sum is σ = 647452271928. Its totient is φ = 647452271926.

The previous prime is 647452271857. The next prime is 647452271951. The reversal of 647452271927 is 729172254746.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 647452271927 - 2⁸ = 647452271671 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (647452271987) 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, 323726135963 + 323726135964.

It is an arithmetic number, because the mean of its divisors is an integer number (323726135964).

Almost surely, 2^647452271927 is an apocalyptic number.

647452271927 is a deficient number, since it is larger than the sum of its proper divisors (1).

647452271927 is an equidigital number, since it uses as much as digits as its factorization.

647452271927 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 11854080, while the sum is 56.

The spelling of 647452271927 in words is "six hundred forty-seven billion, four hundred fifty-two million, two hundred seventy-one thousand, nine hundred twenty-seven".