64402736552299 has 2 divisors, whose sum is σ = 64402736552300. Its totient is φ = 64402736552298.

The previous prime is 64402736552293. The next prime is 64402736552309. The reversal of 64402736552299 is 99225563720446.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 64402736552299 - 2⁵ = 64402736552267 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 64402736552299.

It is not a weakly prime, because it can be changed into another prime (64402736552293) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 32201368276149 + 32201368276150.

It is an arithmetic number, because the mean of its divisors is an integer number (32201368276150).

Almost surely, 2^{64402736552299} is an apocalyptic number.

64402736552299 is a deficient number, since it is larger than the sum of its proper divisors (1).

64402736552299 is an equidigital number, since it uses as much as digits as its factorization.

64402736552299 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 195955200, while the sum is 64.

The spelling of 64402736552299 in words is "sixty-four trillion, four hundred two billion, seven hundred thirty-six million, five hundred fifty-two thousand, two hundred ninety-nine".