27193312343 has 4 divisors (see below), whose sum is σ = 27209225880. Its totient is φ = 27177398808.

The previous prime is 27193312337. The next prime is 27193312351. The reversal of 27193312343 is 34321339172.

It is a happy number.

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 27193312343 - 2⁸ = 27193312087 is a prime.

It is a super-2 number, since 2×27193312343² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 27193312297 and 27193312306.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (27193312543) 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, 7954205 + ... + 7957622.

It is an arithmetic number, because the mean of its divisors is an integer number (6802306470).

Almost surely, 2^27193312343 is an apocalyptic number.

27193312343 is a deficient number, since it is larger than the sum of its proper divisors (15913537).

27193312343 is a wasteful number, since it uses less digits than its factorization.

27193312343 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15913536.

The product of its digits is 81648, while the sum is 38.

The spelling of 27193312343 in words is "twenty-seven billion, one hundred ninety-three million, three hundred twelve thousand, three hundred forty-three".