6774594707645 has 4 divisors (see below), whose sum is σ = 8129513649180. Its totient is φ = 5419675766112.

The previous prime is 6774594707581. The next prime is 6774594707707. The reversal of 6774594707645 is 5467074954776.

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

It can be written as a sum of positive squares in 2 ways, for example, as 3396449958916 + 3378144748729 = 1842946^2 + 1837973^2 .

It is a cyclic number.

It is not a de Polignac number, because 6774594707645 - 2⁶ = 6774594707581 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 677459470760 + ... + 677459470769.

It is an arithmetic number, because the mean of its divisors is an integer number (2032378412295).

Almost surely, 2^{6774594707645} is an apocalyptic number.

It is an amenable number.

6774594707645 is a deficient number, since it is larger than the sum of its proper divisors (1354918941535).

6774594707645 is a wasteful number, since it uses less digits than its factorization.

6774594707645 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1354918941534.

The product of its (nonzero) digits is 1244678400, while the sum is 71.

The spelling of 6774594707645 in words is "six trillion, seven hundred seventy-four billion, five hundred ninety-four million, seven hundred seven thousand, six hundred forty-five".