64126689163 has 2 divisors, whose sum is σ = 64126689164. Its totient is φ = 64126689162.

The previous prime is 64126689103. The next prime is 64126689167. The reversal of 64126689163 is 36198662146.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 64126689163 - 2¹³ = 64126680971 is a prime.

It is a super-2 number, since 2×64126689163² (a number of 22 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 64126689163.

It is not a weakly prime, because it can be changed into another prime (64126689167) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 32063344581 + 32063344582.

It is an arithmetic number, because the mean of its divisors is an integer number (32063344582).

Almost surely, 2^64126689163 is an apocalyptic number.

64126689163 is a deficient number, since it is larger than the sum of its proper divisors (1).

64126689163 is an equidigital number, since it uses as much as digits as its factorization.

64126689163 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 2239488, while the sum is 52.

The spelling of 64126689163 in words is "sixty-four billion, one hundred twenty-six million, six hundred eighty-nine thousand, one hundred sixty-three".