12273870561 has 8 divisors (see below), whose sum is σ = 16473539904. Its totient is φ = 8128390800.

The previous prime is 12273870559. The next prime is 12273870569. The reversal of 12273870561 is 16507837221.

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

It is not a de Polignac number, because 12273870561 - 2¹ = 12273870559 is a prime.

It is not an unprimeable number, because it can be changed into a prime (12273870569) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 13546866 + ... + 13547771.

It is an arithmetic number, because the mean of its divisors is an integer number (2059192488).

Almost surely, 2^12273870561 is an apocalyptic number.

It is an amenable number.

12273870561 is a deficient number, since it is larger than the sum of its proper divisors (4199669343).

12273870561 is a wasteful number, since it uses less digits than its factorization.

12273870561 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27094791.

The product of its (nonzero) digits is 141120, while the sum is 42.

The spelling of 12273870561 in words is "twelve billion, two hundred seventy-three million, eight hundred seventy thousand, five hundred sixty-one".