12047275545 has 8 divisors (see below), whose sum is σ = 19275640896. Its totient is φ = 6425213616.

The previous prime is 12047275529. The next prime is 12047275553. The reversal of 12047275545 is 54557274021.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 12047275545 - 2⁴ = 12047275529 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 12047275497 and 12047275506.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 401575837 + ... + 401575866.

It is an arithmetic number, because the mean of its divisors is an integer number (2409455112).

Almost surely, 2^12047275545 is an apocalyptic number.

12047275545 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

12047275545 is a deficient number, since it is larger than the sum of its proper divisors (7228365351).

12047275545 is an equidigital number, since it uses as much as digits as its factorization.

12047275545 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 803151711.

The product of its (nonzero) digits is 392000, while the sum is 42.

The spelling of 12047275545 in words is "twelve billion, forty-seven million, two hundred seventy-five thousand, five hundred forty-five".