12272545407 has 4 divisors (see below), whose sum is σ = 16363393880. Its totient is φ = 8181696936.

The previous prime is 12272545393. The next prime is 12272545423. The reversal of 12272545407 is 70454527221.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 12272545407 - 2⁶ = 12272545343 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12272545447) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2045424232 + ... + 2045424237.

It is an arithmetic number, because the mean of its divisors is an integer number (4090848470).

Almost surely, 2^12272545407 is an apocalyptic number.

12272545407 is a deficient number, since it is larger than the sum of its proper divisors (4090848473).

12272545407 is an equidigital number, since it uses as much as digits as its factorization.

12272545407 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4090848472.

The product of its (nonzero) digits is 156800, while the sum is 39.

The spelling of 12272545407 in words is "twelve billion, two hundred seventy-two million, five hundred forty-five thousand, four hundred seven".