793081195681 has 4 divisors (see below), whose sum is σ = 795615001732. Its totient is φ = 790547389632.

The previous prime is 793081195661. The next prime is 793081195717. The reversal of 793081195681 is 186591180397.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 186591180397 = 67 ⋅2784942991.

It can be written as a sum of positive squares in 2 ways, for example, as 288413035681 + 504668160000 = 537041^2 + 710400^2 .

It is a cyclic number.

It is not a de Polignac number, because 793081195681 - 2²⁵ = 793047641249 is a prime.

It is a super-2 number, since 2×793081195681² (a number of 25 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (793081195631) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1266902556 + ... + 1266903181.

It is an arithmetic number, because the mean of its divisors is an integer number (198903750433).

Almost surely, 2^793081195681 is an apocalyptic number.

It is an amenable number.

793081195681 is a deficient number, since it is larger than the sum of its proper divisors (2533806051).

793081195681 is a wasteful number, since it uses less digits than its factorization.

793081195681 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2533806050.

The product of its (nonzero) digits is 3265920, while the sum is 58.

The spelling of 793081195681 in words is "seven hundred ninety-three billion, eighty-one million, one hundred ninety-five thousand, six hundred eighty-one".