64157171373227 has 2 divisors, whose sum is σ = 64157171373228. Its totient is φ = 64157171373226.

The previous prime is 64157171373143. The next prime is 64157171373259. The reversal of 64157171373227 is 72237317175146.

It is a happy number.

64157171373227 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 64157171373227 - 2¹² = 64157171369131 is a prime.

It is a super-2 number, since 2×64157171373227² (a number of 28 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (64157171313227) 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, 32078585686613 + 32078585686614.

It is an arithmetic number, because the mean of its divisors is an integer number (32078585686614).

Almost surely, 2^{64157171373227} is an apocalyptic number.

64157171373227 is a deficient number, since it is larger than the sum of its proper divisors (1).

64157171373227 is an equidigital number, since it uses as much as digits as its factorization.

64157171373227 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 10372320, while the sum is 56.

The spelling of 64157171373227 in words is "sixty-four trillion, one hundred fifty-seven billion, one hundred seventy-one million, three hundred seventy-three thousand, two hundred twenty-seven".