27430340650243 has 4 divisors (see below), whose sum is σ = 27431852065200. Its totient is φ = 27428829235288.

The previous prime is 27430340650241. The next prime is 27430340650333. The reversal of 27430340650243 is 34205604303472.

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 27430340650243 - 2¹ = 27430340650241 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 27430340650243.

It is not an unprimeable number, because it can be changed into a prime (27430340650241) 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, 755680255 + ... + 755716552.

It is an arithmetic number, because the mean of its divisors is an integer number (6857963016300).

Almost surely, 2^{27430340650243} is an apocalyptic number.

27430340650243 is a deficient number, since it is larger than the sum of its proper divisors (1511414957).

27430340650243 is a wasteful number, since it uses less digits than its factorization.

27430340650243 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1511414956.

The product of its (nonzero) digits is 1451520, while the sum is 43.

The spelling of 27430340650243 in words is "twenty-seven trillion, four hundred thirty billion, three hundred forty million, six hundred fifty thousand, two hundred forty-three".