64850568605193 has 16 divisors (see below), whose sum is σ = 98836598352896. Its totient is φ = 37051211166480.

The previous prime is 64850568605177. The next prime is 64850568605209. The reversal of 64850568605193 is 39150686505846.

It is an interprime number because it is at equal distance from previous prime (64850568605177) and next prime (64850568605209).

It is not a de Polignac number, because 64850568605193 - 2⁴ = 64850568605177 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (64850568605143) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 260564653 + ... + 260813418.

It is an arithmetic number, because the mean of its divisors is an integer number (6177287397056).

Almost surely, 2^{64850568605193} is an apocalyptic number.

It is an amenable number.

64850568605193 is a deficient number, since it is larger than the sum of its proper divisors (33986029747703).

64850568605193 is a wasteful number, since it uses less digits than its factorization.

64850568605193 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 521384004.

The product of its (nonzero) digits is 186624000, while the sum is 66.

The spelling of 64850568605193 in words is "sixty-four trillion, eight hundred fifty billion, five hundred sixty-eight million, six hundred five thousand, one hundred ninety-three".