64671201326 has 16 divisors (see below), whose sum is σ = 101232115200. Its totient is φ = 30927374808.

The previous prime is 64671201317. The next prime is 64671201347. The reversal of 64671201326 is 62310217646.

It is a happy number.

64671201326 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a self number, because there is not a number n which added to its sum of digits gives 64671201326.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 670535 + ... + 760893.

It is an arithmetic number, because the mean of its divisors is an integer number (6327007200).

Almost surely, 2^64671201326 is an apocalyptic number.

64671201326 is a deficient number, since it is larger than the sum of its proper divisors (36560913874).

64671201326 is a wasteful number, since it uses less digits than its factorization.

64671201326 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 105943.

The product of its (nonzero) digits is 72576, while the sum is 38.

The spelling of 64671201326 in words is "sixty-four billion, six hundred seventy-one million, two hundred one thousand, three hundred twenty-six".