64604336263261 has 16 divisors (see below), whose sum is σ = 66543552824320. Its totient is φ = 62685337322160.

The previous prime is 64604336263249. The next prime is 64604336263421. The reversal of 64604336263261 is 16236263340646.

64604336263261 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a cyclic number.

It is not a de Polignac number, because 64604336263261 - 2¹⁵ = 64604336230493 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 64604336263199 and 64604336263208.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (64604336263561) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 12773500 + ... + 17098858.

It is an arithmetic number, because the mean of its divisors is an integer number (4158972051520).

Almost surely, 2^{64604336263261} is an apocalyptic number.

It is an amenable number.

64604336263261 is a deficient number, since it is larger than the sum of its proper divisors (1939216561059).

64604336263261 is a wasteful number, since it uses less digits than its factorization.

64604336263261 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4327696.

The product of its (nonzero) digits is 13436928, while the sum is 52.

The spelling of 64604336263261 in words is "sixty-four trillion, six hundred four billion, three hundred thirty-six million, two hundred sixty-three thousand, two hundred sixty-one".