64744874040208 has 30 divisors (see below), whose sum is σ = 126972766647734. Its totient is φ = 31982407603968.

The previous prime is 64744874040173. The next prime is 64744874040229. The reversal of 64744874040208 is 80204047844746.

64744874040208 is digitally balanced in base 5, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 64572924489984 + 171949550224 = 8035728^2 + 414668^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 293586585 + ... + 293807032.

Almost surely, 2^{64744874040208} is an apocalyptic number.

It is an amenable number.

64744874040208 is a deficient number, since it is larger than the sum of its proper divisors (62227892607526).

64744874040208 is an equidigital number, since it uses as much as digits as its factorization.

64744874040208 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 587393791 (or 587393702 counting only the distinct ones).

The product of its (nonzero) digits is 38535168, while the sum is 58.

The spelling of 64744874040208 in words is "sixty-four trillion, seven hundred forty-four billion, eight hundred seventy-four million, forty thousand, two hundred eight".