64404053501129 has 2 divisors, whose sum is σ = 64404053501130. Its totient is φ = 64404053501128.

The previous prime is 64404053501107. The next prime is 64404053501213. The reversal of 64404053501129 is 92110535040446.

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., 64250612859904 + 153440641225 = 8015648^2 + 391715^2 .

It is a cyclic number.

It is not a de Polignac number, because 64404053501129 - 2¹² = 64404053497033 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 64404053501129.

It is not a weakly prime, because it can be changed into another prime (64404053501329) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 32202026750564 + 32202026750565.

It is an arithmetic number, because the mean of its divisors is an integer number (32202026750565).

Almost surely, 2^{64404053501129} is an apocalyptic number.

It is an amenable number.

64404053501129 is a deficient number, since it is larger than the sum of its proper divisors (1).

64404053501129 is an equidigital number, since it uses as much as digits as its factorization.

64404053501129 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 518400, while the sum is 44.

The spelling of 64404053501129 in words is "sixty-four trillion, four hundred four billion, fifty-three million, five hundred one thousand, one hundred twenty-nine".