27263391245 has 4 divisors (see below), whose sum is σ = 32716069500. Its totient is φ = 21810712992.

The previous prime is 27263391241. The next prime is 27263391299. The reversal of 27263391245 is 54219336272.

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 5090394409 + 22172996836 = 71347^2 + 148906^2 .

It is a cyclic number.

It is not a de Polignac number, because 27263391245 - 2² = 27263391241 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 27263391196 and 27263391205.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (27263391241) 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, 2726339120 + ... + 2726339129.

It is an arithmetic number, because the mean of its divisors is an integer number (8179017375).

Almost surely, 2^27263391245 is an apocalyptic number.

It is an amenable number.

27263391245 is a deficient number, since it is larger than the sum of its proper divisors (5452678255).

27263391245 is an equidigital number, since it uses as much as digits as its factorization.

27263391245 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5452678254.

The product of its digits is 544320, while the sum is 44.

The spelling of 27263391245 in words is "twenty-seven billion, two hundred sixty-three million, three hundred ninety-one thousand, two hundred forty-five".