64433634229 has 2 divisors, whose sum is σ = 64433634230. Its totient is φ = 64433634228.

The previous prime is 64433634103. The next prime is 64433634247. The reversal of 64433634229 is 92243633446.

It is a happy number.

64433634229 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 can be written as a sum of positive squares in only one way, i.e., 54657764100 + 9775870129 = 233790^2 + 98873^2 .

It is a cyclic number.

It is not a de Polignac number, because 64433634229 - 2⁹ = 64433633717 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (64431634229) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 32216817114 + 32216817115.

It is an arithmetic number, because the mean of its divisors is an integer number (32216817115).

Almost surely, 2^64433634229 is an apocalyptic number.

It is an amenable number.

64433634229 is a deficient number, since it is larger than the sum of its proper divisors (1).

64433634229 is an equidigital number, since it uses as much as digits as its factorization.

64433634229 is an evil number, because the sum of its binary digits is even.

The product of its digits is 2239488, while the sum is 46.

The spelling of 64433634229 in words is "sixty-four billion, four hundred thirty-three million, six hundred thirty-four thousand, two hundred twenty-nine".