794373657561 has 12 divisors (see below), whose sum is σ = 1251740309040. Its totient is φ = 481438580280.

The previous prime is 794373657557. The next prime is 794373657563. The reversal of 794373657561 is 165756373497.

794373657561 is a `hidden beast` number, since 7 + 9 + 4 + 3 + 7 + 3 + 65 + 7 + 561 = 666.

It is not a de Polignac number, because 794373657561 - 2² = 794373657557 is a prime.

It is not an unprimeable number, because it can be changed into a prime (794373657563) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 4011988071 + ... + 4011988268.

It is an arithmetic number, because the mean of its divisors is an integer number (104311692420).

Almost surely, 2^794373657561 is an apocalyptic number.

It is an amenable number.

794373657561 is a deficient number, since it is larger than the sum of its proper divisors (457366651479).

794373657561 is a wasteful number, since it uses less digits than its factorization.

794373657561 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8023976356 (or 8023976353 counting only the distinct ones).

The product of its digits is 100018800, while the sum is 63.

The spelling of 794373657561 in words is "seven hundred ninety-four billion, three hundred seventy-three million, six hundred fifty-seven thousand, five hundred sixty-one".