64115143999 has 2 divisors, whose sum is σ = 64115144000. Its totient is φ = 64115143998.

The previous prime is 64115143993. The next prime is 64115144033. The reversal of 64115143999 is 99934151146.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 64115143999 - 2⁹ = 64115143487 is a prime.

It is a super-2 number, since 2×64115143999² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (64115143993) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 32057571999 + 32057572000.

It is an arithmetic number, because the mean of its divisors is an integer number (32057572000).

Almost surely, 2^64115143999 is an apocalyptic number.

64115143999 is a deficient number, since it is larger than the sum of its proper divisors (1).

64115143999 is an equidigital number, since it uses as much as digits as its factorization.

64115143999 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1049760, while the sum is 52.

The spelling of 64115143999 in words is "sixty-four billion, one hundred fifteen million, one hundred forty-three thousand, nine hundred ninety-nine".