7681805225327 has 4 divisors (see below), whose sum is σ = 7681814314440. Its totient is φ = 7681796136216.

The previous prime is 7681805225323. The next prime is 7681805225377. The reversal of 7681805225327 is 7235225081867.

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

It is a cyclic number.

It is not a de Polignac number, because 7681805225327 - 2² = 7681805225323 is a prime.

It is a super-2 number, since 2×7681805225327² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7681805225323) 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, 3130052 + ... + 5016057.

It is an arithmetic number, because the mean of its divisors is an integer number (1920453578610).

Almost surely, 2^{7681805225327} is an apocalyptic number.

7681805225327 is a deficient number, since it is larger than the sum of its proper divisors (9089113).

7681805225327 is an equidigital number, since it uses as much as digits as its factorization.

7681805225327 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9089112.

The product of its (nonzero) digits is 11289600, while the sum is 56.

The spelling of 7681805225327 in words is "seven trillion, six hundred eighty-one billion, eight hundred five million, two hundred twenty-five thousand, three hundred twenty-seven".