64002402441 has 6 divisors (see below), whose sum is σ = 92447914650. Its totient is φ = 42668268288.

The previous prime is 64002402433. The next prime is 64002402461. The reversal of 64002402441 is 14420420046.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 40409442441 + 23592960000 = 201021^2 + 153600^2 .

It is not a de Polignac number, because 64002402441 - 2³ = 64002402433 is a prime.

It is not an unprimeable number, because it can be changed into a prime (64002402461) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 3555689016 + ... + 3555689033.

It is an arithmetic number, because the mean of its divisors is an integer number (15407985775).

Almost surely, 2^64002402441 is an apocalyptic number.

It is an amenable number.

64002402441 is a deficient number, since it is larger than the sum of its proper divisors (28445512209).

64002402441 is a wasteful number, since it uses less digits than its factorization.

64002402441 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7111378055 (or 7111378052 counting only the distinct ones).

The product of its (nonzero) digits is 6144, while the sum is 27.

Adding to 64002402441 its reverse (14420420046), we get a palindrome (78422822487).

The spelling of 64002402441 in words is "sixty-four billion, two million, four hundred two thousand, four hundred forty-one".