64806104459 has 4 divisors (see below), whose sum is σ = 64874974800. Its totient is φ = 64737234120.

The previous prime is 64806104443. The next prime is 64806104471. The reversal of 64806104459 is 95440160846.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 64806104459 - 2⁴ = 64806104443 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (64806104479) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 34433759 + ... + 34435640.

It is an arithmetic number, because the mean of its divisors is an integer number (16218743700).

Almost surely, 2^64806104459 is an apocalyptic number.

64806104459 is a deficient number, since it is larger than the sum of its proper divisors (68870341).

64806104459 is an equidigital number, since it uses as much as digits as its factorization.

64806104459 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 68870340.

The product of its (nonzero) digits is 829440, while the sum is 47.

The spelling of 64806104459 in words is "sixty-four billion, eight hundred six million, one hundred four thousand, four hundred fifty-nine".