64157023013243 has 2 divisors, whose sum is σ = 64157023013244. Its totient is φ = 64157023013242.

The previous prime is 64157023013207. The next prime is 64157023013249. The reversal of 64157023013243 is 34231032075146.

64157023013243 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 64157023013243 - 2¹⁸ = 64157022751099 is a prime.

It is a super-2 number, since 2×64157023013243² (a number of 28 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 64157023013243.

It is not a weakly prime, because it can be changed into another prime (64157023013249) 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, 32078511506621 + 32078511506622.

It is an arithmetic number, because the mean of its divisors is an integer number (32078511506622).

Almost surely, 2^{64157023013243} is an apocalyptic number.

64157023013243 is a deficient number, since it is larger than the sum of its proper divisors (1).

64157023013243 is an equidigital number, since it uses as much as digits as its factorization.

64157023013243 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 362880, while the sum is 41.

Adding to 64157023013243 its reverse (34231032075146), we get a palindrome (98388055088389).

The spelling of 64157023013243 in words is "sixty-four trillion, one hundred fifty-seven billion, twenty-three million, thirteen thousand, two hundred forty-three".