64197441029 has 2 divisors, whose sum is σ = 64197441030. Its totient is φ = 64197441028.

The previous prime is 64197441023. The next prime is 64197441043. The reversal of 64197441029 is 92014479146.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 57323372929 + 6874068100 = 239423^2 + 82910^2 .

It is a cyclic number.

It is not a de Polignac number, because 64197441029 - 2⁴ = 64197441013 is a prime.

It is a super-3 number, since 3×64197441029³ (a number of 33 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (64197441023) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 32098720514 + 32098720515.

It is an arithmetic number, because the mean of its divisors is an integer number (32098720515).

Almost surely, 2^64197441029 is an apocalyptic number.

It is an amenable number.

64197441029 is a deficient number, since it is larger than the sum of its proper divisors (1).

64197441029 is an equidigital number, since it uses as much as digits as its factorization.

64197441029 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 435456, while the sum is 47.

The spelling of 64197441029 in words is "sixty-four billion, one hundred ninety-seven million, four hundred forty-one thousand, twenty-nine".