794694636845 has 4 divisors (see below), whose sum is σ = 953633564220. Its totient is φ = 635755709472.

The previous prime is 794694636781. The next prime is 794694636917. The reversal of 794694636845 is 548636496497.

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 540632266729 + 254062370116 = 735277^2 + 504046^2 .

It is a cyclic number.

It is not a de Polignac number, because 794694636845 - 2⁶ = 794694636781 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 79469463680 + ... + 79469463689.

It is an arithmetic number, because the mean of its divisors is an integer number (238408391055).

Almost surely, 2^794694636845 is an apocalyptic number.

It is an amenable number.

794694636845 is a deficient number, since it is larger than the sum of its proper divisors (158938927375).

794694636845 is a wasteful number, since it uses less digits than its factorization.

794694636845 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 158938927374.

The product of its digits is 940584960, while the sum is 71.

The spelling of 794694636845 in words is "seven hundred ninety-four billion, six hundred ninety-four million, six hundred thirty-six thousand, eight hundred forty-five".