793152391681 has 4 divisors (see below), whose sum is σ = 854164114132. Its totient is φ = 732140669232.

The previous prime is 793152391649. The next prime is 793152391709. The reversal of 793152391681 is 186193251397.

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 496771232400 + 296381159281 = 704820^2 + 544409^2 .

It is a cyclic number.

It is not a de Polignac number, because 793152391681 - 2⁵ = 793152391649 is a prime.

It is a super-2 number, since 2×793152391681² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (793152391631) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 30505861206 + ... + 30505861231.

It is an arithmetic number, because the mean of its divisors is an integer number (213541028533).

Almost surely, 2^793152391681 is an apocalyptic number.

It is an amenable number.

793152391681 is a deficient number, since it is larger than the sum of its proper divisors (61011722451).

793152391681 is a wasteful number, since it uses less digits than its factorization.

793152391681 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 61011722450.

The product of its digits is 2449440, while the sum is 55.

The spelling of 793152391681 in words is "seven hundred ninety-three billion, one hundred fifty-two million, three hundred ninety-one thousand, six hundred eighty-one".